Funny actually... I went hunting for my old photographs from when I was a kid. I found my first SLR... Canon AV-1 with the f/1.8 50mm prime.
Gave it a clean up and found the lens and view finder to be in perfect condition, and the battery still had charge and it worked! The best bit was I found an old film in it, that had a few exposures left, got it developed... Three (and a half) exposures of horses in a distant field at an obscure angle, plus one of the sofa I photographed to see if it worked. It was a good learning camera.