Holga for a Canon
I'm guessing that most of you probably know it but there's someone in the US who makes adapters for putting a lovely plastic Holga lens on a Canon. He used to make one for a Nikon (which I have). I use it on my FM2 and aside from being able to see virtually nothing through the viewfinder (f8 and thick plastic) it works a treat. Hard to focus so just go by the symbols. I'm missing out on the generally crappy build of a Holga but the images are almost always surprising in a good way.
Hay Pete, Yes there are a lot of folks who do strange and silly things with their Holgas. I think I even saw where someone put the Holga lens on a Hassleblad, not sure what the reasoning was there. Flickr.com and Squarefrog.com have a lot of Holga hacking examples. I even learned how to do 35mm in my Holga sometime back, which is very interesting I think. I also have a Canon AE-1Program, but I just use Canon lenses in it, I am not much of a revolutionary. :-)
Try this link.
It's a Holga lens in a Canon EOS mount.