Color Change CD
You show a CD on both sides. You put the CD in a black case and put a red ribbon through the hole in the center of the case and CDs.
When you pull the CD out of the case, it has changed color and is now red like the ribbon.
You repeat the effect with two more CDs, which turn yellow and blue. Finally, show the sleeve empty!
You will receive the CDs, the ribbons and a German manual.