Anybody got any ideas, or tried to put any traps together? I've seen the boulder trap, but its the only one I've seen floating around. It occurred to me that some cool trap ideas included a ballista- I guess it could fall under "trap", some armor plating on the front that gives the operator cover, sitting up on a hard-to-reach spot, throwing out 3d6+something damage via +7 vs AC. Then there's the pot swingers. I think I saw someone else mention a similar idea. Raised platform that bad guys use to swing stuff down toward the party, only the "stuff" in this case are ceramic pots on the end of chains that burst when the hit somebody, and contain things like: boiling hot oil, nasty immobilizing goo, or some other nastiness.
So... anyone wanna speculate about traps? Or tried making some of your own?