Support your local farmer
If you fancy supporting small farmers of guinea pigs, to make sure that this delicious(?) nosh stays on the menu, you could try visiting KIVA - a microfinance site where you can lend small amounts to the 'working poor' around the world, including guinea-pig farmers!
There's only one bod looking for funding at the moment, why not pop over and lend him a hand (and $25).
http://www.kiva.org/lend/871676