Mental Doll by Tora Magic

You show four holders, each holding a picture of a doll with a different colored dress. You ask a child to FREELY select any of the holders and you take out the picture (a lady in a blue dress). You place the picture inside an empty box. When you snap your fingers, the picture changes into a REAL 3D doll in a BLUE DRESS!

Comes complete with everything you need -- box, holders, pictures and video instructions.