If you're in Melbourne, I highly recommend an exhibition in the Degraves St subway Platform Art Space: WHEN THEY COME WE WILL BE READY by Simon Pericich. The cabinets in the space are full of jerry-rigged weapons made from regular household objects and re-tooled into nasty (and sometimes ridiculous-looking) weapons. I think the exhibition finishes on the 30th of August. It's definitely worth a look.
Note that the second image is called 'nasty_hoes.jpg'. Could make for some interesting image search traffic from dyslexic gangster pr0n seekers.