My strange eats are mostly just old fashioned I think. When we lived in SW France offal was a local big thing. Its not my taste but my Dad used to genuinely like it, in the local French style tripe would be cooked with tomato, wine and herbs which he'd always order, and then say it wasn't as good as the plainer sort was in England! I remember one meal we went out for, when the starter consisted of 35 snails, then tripe for him and stuffed goose neck for me, stuffed with all sorts of other cheap bits of goose. I wouldn't order it now as I realise the necks were stretched from the force feeding of grain for foie gras.
In Portugal I have had goosefoot barnacles a few times. They are harvested from rocks and are dangerous to pick, so they are very expensive to buy. My advice would be not to bother. They look like a birds foot, with toes and nails! Our local speciality, which I love, translates as goats stomach, stuffed with rice, chorizo, goat and mint. Its boiled (like a haggis), then served in slices. Its the taste of mint which is totally unexpected which I particularly like.
I have also eaten horse (regularly in France), elk and reindeer (in Sweden) and here in Portugal roast suckling pig is a prized delicacy - there is a town with about 30 restaurants, all specialising in it. I'm not sure about squirrel lasagne, it must be a lot of faff for not much meat, plus can you still taste the meat under the sauce?
I have heard of kimchi (Archers) but never seen it, and I know you can't take durian on public transport in Singapore, but again I have never seen it. Seal blubber burgers sound absolutely revolting beyond belief. The most unpleasant thing I have ever tasted is some Finnish cheese which looks just like fudge, so you dip in expecting a sweet treat and you get something vile, vile, vile, and then you can't get rid of the taste. Yuk!