The file
America's version of the Kinder Surprise, and it hit the same wall: a chocolate shell with a plastic Disney toy inside is exactly what U.S. food law forbids. The Magic Ball was pulled within months of launch after consumer groups raised choking risks.
It came back in 2000 as the Wonder Ball with candy inside instead of a toy, which was legal and a little disappointing. That version lasted a few years. Brief returns have followed under other owners.
Sources: Wikipedia — Wonder Ball
