United We Ball:

Buckyballs are tiny, powerful magnetic balls and cubes that were sold as an adult desk toy. They became wildly popular after coming to market in 2009 and sold more than 2.5 million sets—until the CPSC banned future sales and, through a recall request, tried to force the product out of consumers’ hands.

This whole Buckyball saga is really odd. As the story points out, there are all kinds of products available that are “harmful” to children that the US Federal Government hasn’t banned.