Haggis is great, if a little oddly shaped. Black pudding is excellent too (congealed pigs' blood and fat), I don't know if you can get it in the US but it's pretty common here. But I don't have too much of it... not particularly good for the figure : I've had a fair number of strange dishes but I really want to try bat and snake. Not necessarily at the same time. And grasshoppers.