I like tripe done in milk with onion and potato. I can get tripe here but the Scottish tripe seems to taste better. Haggis is alright in small quantities.....I used to use tinned haggis when camping and it was okay. Never been a big fan of liver since being made to eat it when I was young although some lambs liver with fried onion can be nice if I'm really hungry.
Lots of strange things can be bought and eaten here.....I have tasted some unidentified parts that have been cooked on the parrilla by friends but they're not for me I'm afraid.