I just found out that you can upload 3DS images on 4chan. Actually, I think I might remember doing it back in the day. Maybe the mods allowed the file format as a renamed jpg.

I think you need both the jpg AND the .mpo file to view it stereoscopicly on your 3DS.
I will first upload the jpg and then the .mpo file which 4chan will simply rename as a jpg.
Just save these to your photo folder on your 3DS memory card and you can view them in 3D.

Of course, the 3DS didn't have high resolution camera or screen, but it is pretty neat to see a stereoscopic camera work.