http://www.cryptosextoys.com/ accepts Sexcoin haha, but also BTC, LTC, FTC, PPC and XPM. It really does depend on merchants, but we really don't need a new coin for every niche or industry possible. These coins are becoming a joke now and it takes away some of the credibility from Bitcoin and cryptocoins in general.
We have Gamecoin, Casinocoin, Betacoin, Pokercoin, Lucky7coin.
And not evern talking about animals : Elephant, Tiger , Eagle , ...
And nobody is crazy enough to sell stuff for that joke-coins.