M&O already marked them "13+" and it didn't help them.
If the CPSC succeeds in getting these banned as hazardous materials, as they have in the past for things like JARTS, it is 100% illegal to import or sell them no matter how much weasel wording you put on the packages.
EBAY has a very aggressive policy on illegal to sell stuff (or even just RECALLED stuff like certain of the Corning glass coffee pots). You can expect your auctions to be deleted. Repeat listing when you've been shutdown will cause you to be kicked off ebay as well.
Go ahead, import all this stuff now, but the way things are going, by early next year, you're going to have a lot of inventory you are going to be stuck with that you can not legally sell.
Half of the hits I get searching for info on Buckyballs are links to the ambulance chasing lawfirms ready to file the personal injury lawsuit on your behalf. This is not a tremendously great market to be in right now.

