Show-Biz is a wholesale and retail distributor of magic tricks, ventriloquism supplies, and theatrical props.
If you perform Kid Show Magic, then consider Chico Chimp! Kids love it!
Each has an envelope.
A picture of a monkey is placed in one.
Instead of the monkey vanishing and appearing in the other envelope, the little rascal is seen hanging on the back on one child.
The other child, who has been holding the envelope containing the monkey all the time, takes out the picture, only to find an empty frame.