Buckyballs
The Consumer Product Safety Commission says children are choking on buckyballs, the magnets seen above, and has filed a complaint. - 

And this final note: Beware of magnets.

The Consumer Product Safety Commission filed a complaint against the maker of Buckyballs, those super-strong magnetic balls that you can mold into fun shapes on your desk at work instead of working.

Apparently, children are choking on them. The company refused a recall, so the commission filed a complaint with the government.

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