End Cavern

My idea is that while venturing in the outer islands in the end, it would be possible to come across an end stone cave surrounded by Jack-o-lanterns. If you were to enter the cave, you would find two chests guarded by a beast (see "Ender Beast"). The chest would contain things like: iron, gold, diamonds, as well as rotten flesh and bones. The cave could also be scattered with skeleton heads as a warning for adventurers. The cave would be about 15 blocks high by about 10 blocks wide with only one entrance.