Quote from: Werekoala;493071Actually had several traps published in a d20 book when the craze first hit. Did a lot of insanely complicated ones, but my favorite was "One Last Coin" - simply a gold coin, placed at the bottom of a small pile of coins as part of a treasure, that was actually the stopper on the top of a bottle embedded in the floor - holding a pissed off Effrit. Let the player's greed be their own undoing.

I like that one alot and will incorporate it in the future.

In similar vein to that, an old solo adventure for Tunnels and Trolls, Deathtrap Equalizer, has the character transported into a treasure room filled with gold. On one wall (if they search) is an inscription "49 is safe".
Pick up 50 gold pieces and a giant gets summoned to smash them.

Another T&T idea I used in a 3.0 D&D game was the "pool of greatness" from the Naked Doom solo - offers magical enhancement to a stat, with a risk of death. I ran as: roll of d6 to determine which stat is affected, get a +4 inherent bonus to that, then make a DC 15 Fort save or die. Its killed a few PCs in its time.
EDIT: Oh similarly to this, we've had players who couldn't resist drinking from (pools of) Book of Vile Darkness's Warp Touch in the hope of getting uber mutations. Also often ends badly.

Quote from: Werekoala;493071Actually had several traps published in a d20 book when the craze first hit. Did a lot of insanely complicated ones, but my favorite was "One Last Coin" - simply a gold coin, placed at the bottom of a small pile of coins as part of a treasure, that was actually the stopper on the top of a bottle embedded in the floor - holding a pissed off Effrit. Let the player's greed be their own undoing.

I read that book and I used that trap. Thanks!

Quote from: Justin Alexander;493249I read that book and I used that trap. Thanks!

Ah, cool - how'd it work?