Here are three magic items for use in your campaigns, based on images from the Internet (two from Facebook) which I do not own. Enjoy!
Scroll of Bafflement: Whoever tries to read this scroll must roll under their intelligence on percentile dice or remain baffled as to its meaning for the next turn. Each turn, the would-be reader has a new chance to realize that it is meaningless and break free from the curse.
Otherwise, until personally attacked, the scroll is destroyed, or the reader collapses from sheer exhaustion, the curse carries on turn by turn, preventing the reader from taking any action whatsoever.
The Spinal Cat of Nine Torments: This weapon is +3 to hit, causing d3+3 damage plus DC 15 Fort or Will save or lose next Action Die due to unbelievable torment. If save is successful, the target can act, but at -1d on the dice chain.
The Spinal Cat has animal intelligence and is Chaotic, communicating with empathic glee whenever it hurts something.
The wielder can choose to take temporary Stamina damage to increases the damage die, at a rate of 1 point per step (heals as normal) to a maximum damage of 1d16+3.
The Brick of Pleasure and Death: This enormous boxed set causes 1d30 damage to any creature it falls upon, plus 1d6 damage per full 10' fallen.
Should an intelligent creature survive the bludgeoning damage caused by the heavy and prodigious materials therein, they must succeed in a DC 20 Will save or spend the next 1d3 hours enraptured by the contents. If another intelligent creature comes upon them during this time, it too must save or be enraptured for a like amount of time.
Every time no more creatures are enraptured by the contents, roll percentile dice. On a roll of 01 the red and bloated sun goes out.
Every time a new sentient creature discovers this item, the cycle begins anew. Even creatures unable to read are affected, because the art is stunning!
EDITS: The Brick of Pleasure and Death is even larger now, as its goals stretch forth. As a result, it does an additional 1d16 damage when it falls upon a target. As its goals stretch farther and farther, this damage may increase!
When the Brick of Pleasure and Death falls on a target, half the gold carried by the target disappears, absorbed into the Brick and never to be seen again. There are those fated to meet the Brick, who suffer this loss months before the Brick actually drops. These are known as Backers of the Brick. (With thanks to Jason Menard!)