Here are some artifacts extracted from my brain for you viewing pleasure. I've writing this for Into The Odd because that's what I run, but their fairly system neutral.
1. Mirror of Symmetry:
It's a mirror with a line of onyx inlaid down the middle. When the right invocation is spoken a target reflected in the mirror is enchanted, speaking the same invocation backwards undoes this enchantment. While under this magic any wound, ointment, paint or magic that is applied to one side of the target is also symmetrically reflected on the other side. The line of symmetry is determined by the inlaid onyx when the invocation is spoken. Any damage(or other things that apply to some part of the body) taken by the target is doubled unless care is taken to hit the target right along the line of symmetry. The effect is only skin deep fortunately for everyone who's eaten under the mirror's power.
2.The Heels:
While confidently striding in these extravagant heels, you can be anywhere within your line of sight as you damn well please. It's not teleportation, space just folds seamless, you were just walking yet somehow you ended up at the top of the tower, despite all the space between here and there. Unfortunately they make for very cumbersome footware, it's difficult to balance on these stilettos in even even on even surfaces, and due to their height you'll probably need help getting back up. Your going to have to make Dex saves to keep standing, and Will saves to stand proud for the Heels to work their magic.
3. The Heterofox:
Wait, you a creature, what are you doing in this list? Damn foxes. Either way, the Heterofox is a fox black wire fur that will follow you and whisper sweet blasphemies into your ear at night. If threatened it will jump into someone's mouth and hide under the tongue or between the teeth, shrinking to the size of a flee and flattening paper thin to do so. While it will try to make it seem like your blaspheming, it's really bad at mimicking other people's voices and can only clumsily force your jaw up and down. It knows a great amount of history, all of which pertains to religious conflicts, schisms and the minutia of differences in doctrine. It's willing to share, in fact it's difficult to get it to shut up about it. It has a sibling which it will always avoid talking about. Other than that it's a fox.
4. Spherering Marble:
Everything within a couple meters of this marble gradually becomes more and more round and spherical over time. Rock gets smoothed like river stones, smooth stones become more symmetrical until they are perfectly round. People get fatter and have softer features if they carry it for a couple of weeks, and luckily usually stop carrying it around to see the latter stages. Rumor has it that it has something to do with the Spherical Wizards. The marble is in a round bag with other marbles, so you can't quite tell which one is the magic one.
5. Seeing Nail:
If you shove this nail into you eyeball, it will grant you normal human eyesight from the end of the nail you didn't shove in there. It looks kind of cool, so I guess it's an upgrade.
6. Sigil of Malice:
With this symbol tattooed on your tongue, you will always be able to say how and why you hate someone, regardless of any languages barriers, ambiguities word choice, deafness, muteness or drunkenness. This will be one thing that you will always be able to communicate clearly and accurately. There is also an analogous Sigil of Love, Sigil of Confusion and Sigil of Restrooms. All of these sigils are exclusive to each other.
7. Remembering Boots:
When you walk in these boots you can cast your spirit to see, hear and smell a place where these boots have been. Roll as many d6s as you want, add them together and that's how many days worth of travel back you can cast your soul. Your able to instantly come back into your body unless you rolled an amount greater than your will, in which case your going to have to find your way back to your body. While your soul is cast back your body is in a trance state that continues walking indefinitely.
8. Spiritual Bindings:
These are large heavy and metal bindings for keeping buildings in place. Except their intangible and invisble without some form Wizard vision or second sight. They can be used to spiritually link two things, if your able to get them on and nail them in, but once there in there nothing will get them out. Rumor has it that the country up to the north is covered in these things, you know the one with bears roaming the streets and the regular bathing.
9. Pain Inversion Suit:
When wearing this garment, all pain is inverted into pleasure. Reduce incoming damage by 1 and gain complete immunity to effects that are purely pain based.(Why yes, I am literally stealing someone's idea wholesale, but have you previously considered that this could exist in D&D? Didn't think so.)
10. An Unsettling Garden Gnome:
All living things within a mile radius of the Gnome will sense it's presence and want to avoid it. All within 30' of it will have the that feeling you get when your next to a cliff and you can't help but imagining how easy it would be to fall down, except instead of a cliff it's the Gnome and instead of falling the action you can't help imagine in fear and curiosity is breaking this ceramic thing. Sleeping in it's presence requires a Will save.
11. Bound Key:
This key will never loose it's owner. If the owner is somehow stolen or lost from the key, they will find their way back to the key. Trading or giving away the key does transfer ownership thought. Your not sure but you think the current owner is a ghost.
12. White Tuning Fork:
When this tuning fork is struck against a surface and makes a sound, that surface will go invisible. If the surface is scratched or involved in any activity for 1d6 hours the invisibility will dissipate. It can be used on people however they will be blind while the invisibility covers their eyes. Closing your eyes while striking the Fork will allow prevent the blindness, but it will leave your eyes still visible. In the the room where the Fork is found there will be several invisible objects with vague silhouettes outlined by the dust that's settled on them.
1. Mirror of Symmetry:
It's a mirror with a line of onyx inlaid down the middle. When the right invocation is spoken a target reflected in the mirror is enchanted, speaking the same invocation backwards undoes this enchantment. While under this magic any wound, ointment, paint or magic that is applied to one side of the target is also symmetrically reflected on the other side. The line of symmetry is determined by the inlaid onyx when the invocation is spoken. Any damage(or other things that apply to some part of the body) taken by the target is doubled unless care is taken to hit the target right along the line of symmetry. The effect is only skin deep fortunately for everyone who's eaten under the mirror's power.
2.The Heels:
While confidently striding in these extravagant heels, you can be anywhere within your line of sight as you damn well please. It's not teleportation, space just folds seamless, you were just walking yet somehow you ended up at the top of the tower, despite all the space between here and there. Unfortunately they make for very cumbersome footware, it's difficult to balance on these stilettos in even even on even surfaces, and due to their height you'll probably need help getting back up. Your going to have to make Dex saves to keep standing, and Will saves to stand proud for the Heels to work their magic.
3. The Heterofox:
Wait, you a creature, what are you doing in this list? Damn foxes. Either way, the Heterofox is a fox black wire fur that will follow you and whisper sweet blasphemies into your ear at night. If threatened it will jump into someone's mouth and hide under the tongue or between the teeth, shrinking to the size of a flee and flattening paper thin to do so. While it will try to make it seem like your blaspheming, it's really bad at mimicking other people's voices and can only clumsily force your jaw up and down. It knows a great amount of history, all of which pertains to religious conflicts, schisms and the minutia of differences in doctrine. It's willing to share, in fact it's difficult to get it to shut up about it. It has a sibling which it will always avoid talking about. Other than that it's a fox.
4. Spherering Marble:
Everything within a couple meters of this marble gradually becomes more and more round and spherical over time. Rock gets smoothed like river stones, smooth stones become more symmetrical until they are perfectly round. People get fatter and have softer features if they carry it for a couple of weeks, and luckily usually stop carrying it around to see the latter stages. Rumor has it that it has something to do with the Spherical Wizards. The marble is in a round bag with other marbles, so you can't quite tell which one is the magic one.
5. Seeing Nail:
If you shove this nail into you eyeball, it will grant you normal human eyesight from the end of the nail you didn't shove in there. It looks kind of cool, so I guess it's an upgrade.
6. Sigil of Malice:
With this symbol tattooed on your tongue, you will always be able to say how and why you hate someone, regardless of any languages barriers, ambiguities word choice, deafness, muteness or drunkenness. This will be one thing that you will always be able to communicate clearly and accurately. There is also an analogous Sigil of Love, Sigil of Confusion and Sigil of Restrooms. All of these sigils are exclusive to each other.
7. Remembering Boots:
When you walk in these boots you can cast your spirit to see, hear and smell a place where these boots have been. Roll as many d6s as you want, add them together and that's how many days worth of travel back you can cast your soul. Your able to instantly come back into your body unless you rolled an amount greater than your will, in which case your going to have to find your way back to your body. While your soul is cast back your body is in a trance state that continues walking indefinitely.
8. Spiritual Bindings:
These are large heavy and metal bindings for keeping buildings in place. Except their intangible and invisble without some form Wizard vision or second sight. They can be used to spiritually link two things, if your able to get them on and nail them in, but once there in there nothing will get them out. Rumor has it that the country up to the north is covered in these things, you know the one with bears roaming the streets and the regular bathing.
9. Pain Inversion Suit:
When wearing this garment, all pain is inverted into pleasure. Reduce incoming damage by 1 and gain complete immunity to effects that are purely pain based.(Why yes, I am literally stealing someone's idea wholesale, but have you previously considered that this could exist in D&D? Didn't think so.)
10. An Unsettling Garden Gnome:
All living things within a mile radius of the Gnome will sense it's presence and want to avoid it. All within 30' of it will have the that feeling you get when your next to a cliff and you can't help but imagining how easy it would be to fall down, except instead of a cliff it's the Gnome and instead of falling the action you can't help imagine in fear and curiosity is breaking this ceramic thing. Sleeping in it's presence requires a Will save.
11. Bound Key:
This key will never loose it's owner. If the owner is somehow stolen or lost from the key, they will find their way back to the key. Trading or giving away the key does transfer ownership thought. Your not sure but you think the current owner is a ghost.
12. White Tuning Fork:
When this tuning fork is struck against a surface and makes a sound, that surface will go invisible. If the surface is scratched or involved in any activity for 1d6 hours the invisibility will dissipate. It can be used on people however they will be blind while the invisibility covers their eyes. Closing your eyes while striking the Fork will allow prevent the blindness, but it will leave your eyes still visible. In the the room where the Fork is found there will be several invisible objects with vague silhouettes outlined by the dust that's settled on them.