Not to be confused with
the BFG 9000, this is a real
weapon. Unfortunately, it appears the guy that built this thing has graduated (or quite possibly got expelled) from the
University of Kansas and his webpage was subsequently removed, so what follows is from memory.
The BFPG 9000 (as most people familiar with
Doom and
Quake should be able to guess) stands for
Big F*cking Potato Gun. This weapon was made from
PVC pipe and used
aerosol cans as propulsion, and was capably of firing potatoes at
supersonic speeds. Shooting a
watermelon with one of these things results in a healthy pink
mist and some
rinds.
It really is shame I can't locate a
mirror of the page (
Stuff the Warning Label Said Not To Do) as it had neat little charts showing how velocity is affected by different barrel lengths and
PSI's and how to optimize your
potato gun.
References
Unknown. <http://www.ittc.ukans.edu/~botanika/warning_label.htm#bfpg> Site no longer exists.
Malda, Rob. Slashdot.org: Humpday Quickies <http://slashdot.org/articles/00/01/05/1445245_F.shtml>