You need one for the garage.
http://www.mostwatchedtoday.com/bug-a-salt-salt-gun-that-kills-flies/
Nowhere near as much baby killing potential as the Yooper Assault Rifle.
I cant remember where the build thread is, but the guy made it from stuff you can find at any proper hardware store. Barrel is hydraulic tubing.
In reply to Kenny_McCormic:
http://www.homegunsmith.com/cgi-bin/ib3/ikonboard.cgi?s=9a46a10a07a6c011ff5fe03cc914fe50;act=ST;f=30;t=15656;st=0
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