It appears that you have a great variety of tongue recipes, and I’ll not add to the list.
I came from a farm-oriented family, where all of a butchered animal was used but the squeal. My family wasn’t impoverished, but, we were taught from birth, frugality.
I've eaten most of the things mentioned in this thread, but I’ve, absolutely, spared myself some of them.
One of my families’ favorites, was animal brains, generally obtained along with Tongue, liver, pig feet, tails, etc. they were prepared like scrambled eggs, were almost discernible, from them, and delicious.