I can't find any references to it online beyond the auction sites, but this 1990 sculpture by Martin Kippenberger, titled Kippenberger Greifbar, will be sold at Sotheby's in New York in a few weeks.
It's from an edition of 13, rendered in the medium of "dollhouse, resin, cigarette butts." But don't worry about the kids; as far as I can tell, the cigarette butts are encased in the fist-shaped resin blob. On the other hand, if it reaches anywhere near its sale estimate of $10-15,000, you should worry about the kids.
Lot 212: Martin Kippenberger, Kippenberger Greifbar, est $10-15,000, Sept. 8, 2008 in NYC [sothebys.com]