Borbos's Joyous Wand of Color

This crystalline, prismatic wand can channel the illustrative intent of its wielder. While holding the wand, you can magically create a stroke of color in the air, allowing you to draw in midair or on any surface the wand touches. The effect is illusory, visibly magical, radiates dim light out to 5 feet, and dissipates after 1 hour.

If you attempt to draw on an object held or worn by a hostile creature, that creature must succeed on a DC 10 Dexterity saving throw in order to avoid it.