HOW TO – Construct your own “Lo-fi Fisheye” lens on the cheap

Peter writes in –

Matt Hallock has a how to for building a lo-fi fisheye camera lens for around $10 using supplies found at your local hardware store. Fisheye lenses are crazy cost prohibitive for most of us, but this method gets you 90 percent of the effect, plus a little Holga-esque unpredictability to boot!