This Limited Edition item was released for April Fools 2010. It was available for 5000 c from April 1-9, 2010 and gave 50 xp when purchased. The description reads "Pop goes the weasel!"
It was possible to receive this item from the Holiday Gifting Crate during Christmas 2010.
When clicked a puppet pops out.
A very similar item was introduced for Christmas 2010, the XMas Jack in the Box.