The two green snakes with the human-shaped heads came with this big castle playset i used to have when i was little. The castle itself was a big metal rectangle that folded up and had a handle for carrying it. It came with a bunch of different knights, some blue wizards, these snakes, catapults that shot tiny plastic rocks, and some other stuff. I believe one side of the castle had a drawbridge that could be pulled up via little tiny chains.
I can't remember exactly what it was called or who made it though, sorry.
Man, now i really miss that thing...so much sharp metal and tiny objects....