Gold Pit Trap (trap idea)
Here's one for you Dm's that want a trap to hurt those greedy players of yours. The players are in a dungeon & they walk into a room to find that there is a gain pit in the middle & that about 80% of it is filled with gold. If the players tries to go into this pit & grab one of those gold coins they will find that they are actually made of a some sort of acidic material that will do 2d6 damage to the player (God rest those unfortunate ones who Scrooge McDuck there way into the pit)