This is still talked about in my live group...
While playing through a much stranger version of Tomb of Horrors: Garden of Graves, the PCs ended up in a ruined casino/banquet hall that, upon entering, filled with ghosts reenacting a long-forgotten wedding feast. While two PCs fell into a roulette trap, compelled to play (and gambling points of random stats in the process) until the trap failed to hit their Will, the dwarf had a much harder experience. He'd wandered to the buffet, which compelled whoever sampled the fare to continue to eat, and eat, and eat until they gorged themselves to death. The dwarf nearly succumbed to the gorging, having lost 1 to his Speed and gained 75 pounds, before tearing himself away. Before he left, though, he resisted another attack against Will to stow away a 'haunted turkey' from the buffet table for later use. He was convinced it would come in handy later... and he was right.
Later on, the party used a dungeon-shaping artifact which allowed them to rearrange one dungeon tile on the table to a location or position of their choice. They turned the tile they were camped in to remove the door and provide a perfectly safe location for an extended rest (yeah right). You see there was an eladrin witch after them and the artifact, who was actually a lamia. She was able to squeeze... over the course of a few hours... through minute cracks. Well-above their level, and assisted by two scarab swarms, she'd kill or cow them, steal the artifact, and entomb them forever in order to work her evil in Acererack's satellite installation.
The PCs had a hell of a fight on their hands, and despite some momentary brilliance began taking huge hits. As hp was nearly spent for the three of them, the sorcerer managed to activate the artifact with a great Arcana check and turn the tile so that the door reappeared. The party risked OAs to escape through the door and slam it shut behind them... not quite understanding, I suppose, the lamia and swarms ability to squeeze through the gaps. As they started to do just that, the sorcerer fumbled with trying to activate the artifact one last time to trap them all in the chamber. He just could not roll for beans, and she was steadily flowing through. The rogue and dwarf managed to drive her back... and then he remembered the haunted turkey.
Ripping the turkey from his pack, he tore it to pieces and shoved the cursed meat into the cracks and crevices. The swarms and the lamia, of course, had to eat through in order to proceed- and the haunted turkey successfully snared them. The dwarf proceeded to, round after round, shove turkey into the spaces, stalling her until it was spent. Go figure, the dice made it extra dramatic, for as soon as the turkey ran out and she was about to get through, the sorcerer rolled a natural 20 and the chamber turned. She was trapped for hours. They proceeded to move the dungeon several more times, taking hours themselves, removing the nearby dungeon so far from the lamia's tomb she could never find a proper crevice back. She was entombed forever, a beautiful, deadly encounter foiled by... a haunted turkey.