I am amazed by some of the scratch built projects and conversions that I stumble across online from time to time. I like to think that I have the creativity to pull off a cool project, but then I stumble across something truly grande and doubt myself. Even if I possessed the creativity, I doubt I would be able to find the time!
I don't play Apocalypse... but if I did, I'd want an Ork Stompa... that's right, one of these:
However, it costs quite a bit of cash. Irondog Studios made one of these out of a Mr. Potato Head toy... and holy crap, it is cool. Check it out for yourself!