Here's the fisheye camera made by Lomography. It's a plastic 35mm camera that captures 180 degrees of your view. The distortion adds a pretty fun effect to close ups.
They are available at urban outfitters and a variety of places online. They come in a bunch of cool colors and are very durable. I have the neon pink one and I've had it for about six years and I've never had any problems. It's a very fun and cheap alternative to expensive fisheye lenses for digital cameras.
It comes in the basic model, the FIsheye 2.0 with a flash and then the Baby version, which is much smaller, but still uses 35mm film.
Heres the link to check them out: http://shop.lomography.com/us/cameras/fisheye-family