Cosby and Boo are both fed Tripe and biscuits. It does stink, but we buy the frozen stuff from PAH and just let it defrost overnight. It doesn't smell that much if it's left to defrost naturally. If you put it in the microwave or cook it, that's when it stinks. Which is why both of ours get it raw!!
However, as with Gilly's nan - my nana used to eat raw tripe with vinegar on it. It's one of my childhood memories - ahhhh! I did ask her why she ate it and she said that she got used to it during the war when they didn't have much choice.