I recently received a Holga camera and the images it produces are really interesting. A Russian-designed, Chinese-made, plastic-lens, toy camera, it shoots 6x6 cm medium format film and really has a mind of its own. Not a mind like your digital camera - a computer that makes corrections, alteration and suggestions - but rather its own strange inconsistencies that make for hit-or-miss photos, sometimes of remarkable results.
As you can see, it vignettes the edges, focus is guess work and exposure is a bit shaky. The focus consists of turning the lens to one of four approximate distance settings, the aperture I think is about f11, the shutter speed about 1/50th. All that said, it's nice to take photos where the fragility of film is ever present, the images not guaranteed, and a 2-3 day wait for the film to process. The processed film is in beautiful, large rolls and the results seem more like a loose collaboration between me and the camera.