I'm at a Shiur and the rabbi said that a sukkah can have walls made of anything even "elephants," but I'm pretty sure he was being facetious. Can anyone provide a source verifying or explaining?
Its a gemara in Succah 23a and halacha rules this way in shulchan aruch orach chaim siman 630 siff 11but it must be tied down so it wont walk away.
בפיל קשור כולי עלמא לא פליגי דאי נמי מיית יש בנבלתו י
With a tied down elephant, all opinions agree it is kosher, since even if it dies, there are still 10 handsbreadths (of height) left in the corpse