A shot of the front of the particle thrower I built for my Halloween proton pack. Of note here is the barrel, which is made from a clear plastic tube that used to hold glitter. I accidentally "frosted" it by spraying too much brake fluid on in an attempt to get the label off, but the barrel on the movie pack was frosted anyway, so it's a bit of a happy accident.

For more pics of my pack, see my Flickr page. http://www.flickr.com/photos/16884216@N03/