I just cooked cow tongue about a month ago.

Deer, buffalo, water buffalo, ostrich, emu, turtle, all species of fish(except fugu, but including stingray), sushi, rabbit, squirrel, dove, frog legs, tripe, squid, heart, clams, mussels, oysters(gross raw, not bad cooked), alligator(tastes like chicken, have it all the time)...

I can't think of much that has been mentioned by the above posters that I HAVEN'T tried, except no zebra, jellyfish or balut.

Soon I'm going to order a whole octopus to cook.