I never did mention the camera my brother, Ryan, gave me for Christmas: a Kodak Pony IV. Apparently, it's from the late 50's to early 60's, which makes it the oldest camera in my meager collection.
This is a pretty simple trick, but I couldn't stop doing it, the colors just pop out! I don't think I've seen one that goes from b&w to color just like that. Anyway, check this out, I found it while stumbling.