I apparently used to steal tripe from my grandparent's plates as a toddler and still have some vague memory of it being quite nice. Am not about to retry though. (and will add pp's lists of brains, willies etc to that list)
I can do all seafood except when it's still alive and making a last bid for freedom. (the first time I bought some variety of mussel they ate my teatowel overnight) Dp is always coming home with things that are still waggling around and climbing up the sides of bags.
I tried horse once by accident. (dp told me afterwards) It was, as the ready-meal industry in the UK has since proved, rather beeflike.
My Dad used to breed rabbits which I was led to believe was chicken.
Oooohhhh sadly I think balti pie would go down well with my DCs.
Didn't expect coleslaw to be mentioned and I cannot, even with your recommendations think about putting seafood that has a weird little spouting hole at one end and a sort of phallic look or the ears of a pig in my mouth.
Razor clams are actually really nice, once you get past their unfortunate appearance - they're sweet, like scallops and lobster are sweet (and best of all, they're free where I live!). I like pigs ears á la Hugh F-W - ie baked with a mustard rub - a bit like crackling. Snails are good too - but I'm with you on hearts, no particular reason (I like liver and kidneys) but just can't face eating heart. Nor eyes. Nor coleslaw (reminds me of vomit).