Magic Items

This writhing crystal is steeped in the warped essence of the Far Realm. As an action, you can attach the shard to a Tiny object (such as a weapon or a piece of jewelry) or detach it. It falls off if your attunement to it ends. You can use the shard as a spellcasting focus while you hold or wear it.

When you use a Metamagic option on a spell while you are holding or wearing the shard, you can cause a slimy tentacle to rip through the fabric of reality and strike one creature you can see within 30 feet of you. The creature must succeed on a Charisma saving throw against your spell save DC or take 3d6 psychic damage and become frightened of you until the start of your next turn.

This tiny vial contains magic perfume, enough for one use. You can use an action to apply the perfume to yourself, and its effect lasts 1 hour. For the duration, you have advantage on all Charisma checks directed at humanoids of challenge rating 1 or lower. Those subjected to the perfume's effect are not aware that they've been influenced by magic.

Keoghtom's Ointment

This staff is made of a single piece of unmelting, dark-green ice. While its exact form can’t be discerned, a dark shape running the length of the staff writhes within.
Clark's Note - Nothing stops you from describing the frozen staff as a cane with the dark form creating a spiral down the length so you can call it a Staff of Striping.