Oreo-Tsuke by Undermagic (GV$13)

Comes with a $13 gift voucher on your next purchase :) 
 
A fun mentalism effect for kids with lots of audience participation. The magician guesses who is hiding the black cookie among a handful of colorful cookies. In the finale, all the cookies magically turn black!

Includes:
4 colorful cookies
1 black gimmick cookie
5 black cookies
2 fabric bags
Video tutorial
The cookies are made of high-quality EVA foam, screen-printed for a pleasant texture, vibrant colors, and high durability for professional use.