Just a short list:
Playmates, (I think), Skeleton Warriors
Revoltech Jason and the Argonauts Skeleton
Pirates of the Caribbean Cursed Pirate
Gentle Giant Hellboy graveyard skeleton BAF
Generic Bag of Skeletons-Walmart (I've used these for display and they are great minus a bad head sculpt but you can get a cast of a skull or use a DCD Deadman, DCUC Negative Man, ML Red Skull, modded Skeletor, etc.