Alternative 35mm and other format cameras abound everywhere, especially on the net. There's the Brownie 127 for instance, it doesn't all have to be 35mm or 120 even; and even 127 can still be sourced. Amazing but true.
I cannot even recall what 127 was like, but it was almost certainly paper backed as was almost all stock other than 135 or sheet film. There were loads of formats at one time. 620 seems to have gone, or has it? 22o is just about gettable, it’s double length 120, and I seem to remember something called 828 which was roll film but the same size or close as 135. Half frame 135 like the Pen F existed and there was even half frame 120 (I had one of those) and a panoramic 35mm using two frames.
Lomography there’s a challenge, how many can we revive ?
127 Brownie :………………http://bit.ly/X6lN7g