Yo-yos

thumb|A plastic yo-yo A yo-yo (also spelled yoyo) is a toy consisting of an axle connected to two disks, and a string looped around the axle, similar to a spool. It is an ancient toy documented since 440 BC. It was also called a bandalore in the 18th century.

thumb|right|300px|Large and miniature Western rubber diabolos. Wooden sticks are shown in the background

episode of The Simpsons (S3 E16)