This is a ghost trap (from Ghostbusters) that I made using foam board. I used plastic sheet from signs for the metal looking plates and a copper pipe for the handle. Knobs were derived from random knobs from the house. Red pipes are PVC pipes I ripped off from the previous foam trap I made.

The only tools used were a T-ruler and an X-acto (and it only took me a week ;) ).

UPDATE 6/14/2008: Added and replaced some knobs; Added lamp and switch to battery box; updated some parts