[outofsalt]

“Another risk of these powerful magnets is that if more than one magnet is ingested, they can pinch soft tissues in the gastrointestinal tract. This has led to at least 1,700 emergency room visits and necessitated the recall of the Buckyballs line of toys, which were construction sets of small neodymium magnets.”
From wiki

[Daffynition]

Found at a tag sale, the other day. Unless you swallow the small screws, it's a safe toy. :)