Wand of Polymorph
Wand,
Very Rare
(requires attunement; cost 10000 gp)
Crafting Components
Diamond handled by a shapeshifter in its true form
(requires attunement by a spellcaster)
While holding this wand, you can use an action to expend 1 charge to cast polymorph (save DC 15).
This wand has 7 charges and regains 1d6+1 expended charges each dawn. When the last charge is expended, roll a d20. On a 1, the wand transforms into a Tiny bug that wanders away.
Source