Image: © Sophia Marcey
I love holgas and their classic vignetting. I haven't bought one yet; perhaps it's the fear of burning through hundreds of rolls of films before I get one shot that hasn't been hideously underexposed.
Anyhow, I will buy one soon but until then I've been using a Photoshop Holga effect plugin. Cheating you ask? Yes... l know. But its' still fun nonetheless and you can get some interesting effects. Smaragd at flickr has kindly shared it
here.