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.