Mental Doll by Tora Magic (4432)

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 with blue dress). You place the picture inside an empty box and 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.