Yes, stereo cards, or just prints.
When I got my first Realist 45 and View Master personal cameras, I tested with regular old B&W film and developed as negatives. I just wanted to make sure the cameras worked (and they were in fine shape). I also did color negatives and had them developed at a drug store (asking them not to cut the negatives).
I scanned the negatives, made a template in The GIMP, and created cross-eyed 4x6 prints just for fun. Uploaded to Shutterfly to get prints, and Google Drive to share.
Here is an example - color negative film developed at a drug store, crappy home scanner, etc. I also had these printed 4x6 to hold in your hand - not quite the traditional way to do things, but it was just a test, and they really do look better in-person than on a computer screen.
Made for cross-eyed viewing.
16 new items added to shared album
photos.google.com
Eventually I'd like to do this in a darkroom, and in different formats.