To do this, you need either Razor or Syd. When you have Ed out of the room, get his hamster. The card key and the dimes are also things you can get if you do it in time.
When you are one of the characters, place the hamster in the microwave and turn it on. The hamster will explode.
For an extra thrill give the hamster back to Weird Ed. He will get mad and kill you. You won't see the killing, but you'll end up in afterlife with nothing, but you can still get stuff from places, like the sponge. You can still get caught by Edna or Ed if you are in there room. Also your friends can't see you and you are invisible. Enjoy you death!