The idea came from our chocolate chess set (take a piece, eat a piece), but for grown-ups. The product started as our plastic MegaChess set with the 8-inch king. Then we came up with a system where the chess pieces clip on to the tops of beer cans or soda cans. Lightweight and durable, these pieces can withstand the wear and tear they are likely to endure during any game of chess involving beer. Remember to drink responsibly and that drinking and driving is a fools' errand!