I remember a Dragon article many moons back about traps which had the idea of a "wringer" trap. Unlike normal squishing traps, this one rotates the room a section at a time whilst squeezing the walls and ceilings (a fairly arbitrary difference when they're rotating!), so the overall effect is of wringing out a cloth. Nasty to get out of. Either have the entire corridor do it, or have a kind of quick "pulse" that runs down the corridor which they have to jump through/time carefully to avoid/block up/whatever.

A "rubber bridge" is an interesting one - I thought it up, but never got to use it. Every step on the bridge/corridor, the flagstone twangs down into a "bungee-jump" down into the pit below (where reside things with teeth!) for a couple of seconds, then yanks them back up. Getting across that would be fun - each step involves a plummet down, fight stuff off, then get hoicked back up again. You come back up at speed, so you need to make sure nothing's poking out the side of the flagstone on the way up, or it gets squished! (and jumping out of the way is likely to land you on another flagstone!) To make it more fun, say that the flagstone works out the weight of whatever's on it when it falls to judge how hard to pull back - then if one member steps/falls off the flagstone, you can't just get them onto another one to get out, cos the flagstone won't have the power to rise back. And if a monster gets onto the flagstone while you're down there (or grabs hold of it as you rise out) then again the flagstone won't rise, and you'll have to fight it off to get back. Be fun for the party to work out a strategy to get across with the minimum of damage, and maybe add a bonus in the pit (in the remains of previous adventurers!) if they work out a way to get down there, kill the monsters, and get out again.

Graham.

PS. Not D&D, but I've got a load of Warhammer 40K figures (lead and plastic) stashed at home, so if anyone in the UK (especially near Cambridge) is interested, let me know. If not, sometime in the future I'll end up dumping the lot at my local Games Workshop. Lots of Genestealer and Imperial Guard figures, including a lot with extra details/scratch-building, and some other stuff. Most are part-painted but not finished.