I think the most extreme I've eaten is sheep brains, bone marrow and tongue (cooked as a soup, then drained and served with lemon & olive oil dressing). Yummy! There is also a Greek Easter soup called magiritsa that contains the diced innards (intestines, liver etc) of sheep. Double yummy!
i've eaten bone marrow from chicken.it's not that bad.
No relation whatsoever. We are talking about a thick slice of beef bone, with the marrow inside, cooked. You fork it out from the bone (and lick it clean, it's that good). Of course, ever since the mad cow disease became common such specialties are restricted to local markets only. I forgot about the sheep's head and testiclesGreat soup.
*the exceptional businesses of our esteemed moderators