Got the fever?!?

I've done lots of DIY projects in the past, making camera parts out of all sorts of stuff.  I used to do it a lot during my college days, when I had more time and less money.  This guy has the same spirit of using trash and scraps to make something useful - a Pringles can was turned into a lens extension tube!  

http://photocritic.org/macro-photography-on-a-budget/  

I've been meaning to make a homemade tilt/shift lens for my slr's, but never got around to trying it.  Maybe I'll get around to the project soon.  That link has inspired me...