Here's the Diana F+! It is a plastic toy camera that uses 120 film. It creates very "dreamy" images in square format. It also has a pinhole function!
This camera is very similar to the Holga camera I posted about a few weeks ago. It's hard to distinguish the difference between some images taken with the Holga or Diana. Once you mess around with both you'll probably become more attached to one or the other. The Holga has two f-stops and the Diana has 3, which makes it better for various lighting conditions.
Heres the link to check out the different Diana cameras and accessories:
Below are some pictures I took in Cuba with my Diana.