Last weekend my father and I went to a ham radio flea market and I ended up with two toy camera finds. One man had an original Diana at his table, I started looking at it and was surprised to see it completely intact. He says "That's been in my basement for way too long. You can have it for $1." Looking forward to trying it out!
Another seller had a couple brand new in the box, Nishica 3D four lens cameras. Looks like the Lomography Supersampler, but takes the four half-frame images all at once. Originally the company provided their own processing service to make lenticular prints with this camera. I'm sure they're long gone by now, but its probably possible to make up stereo images too. For the hefty price of $5 I just had to pick up one of these to play with.