Found in the MAKE Flickr pool:
Mario Caicedo Langer of BogotÃ¡, Colombia, built this excellent prop weapon called the Pistol WTF 2000 that packs light and sound effects. (Click on the image for a bigger pic.)
MATERIALS: My old heat gun (RIP), pieces of video camera, industrial plastic rollers, toilet tank tree, blender glass funds. Coming to Instructables.
(I wanted to call it “Plasma Pistol Ejector Organic Fabric and ash, but my brother said that the acronym PEPITO was a household name …)
(Translated by Google Translate)