Jester's Rod (3.5e Equipment)
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Jester's Rod: At first glance, this is a Rod of Wonder. Upon closer inspection, however (spellcraft DC 20) the Rod is indentified as what it truly is: a Jester's joke that will turn into a live chicken in the hand of the wielder the first time it is activated.
The process can be reversed (only to repeat when the rod is activated again) by expending a 0th-level spell slot into the Rod (or chicken as the case may be).
Moderate; (DC 19) Transmuation;CL 9th; Craft Wondrous Item, baleful polymorph; Cost 2,000 gp, 160 XP, 2 Days; Activation: See Text; Weight: 2 lb. lb.; Market Price: 4,000 gp