I collect a lot of cartoon themed Ed-U-Cards and display them on Flickr, and every so often a set will have a little flip animation on the back of the cards.
Recently I scanned in some Popeye cards and found this little gem! Enjoy:
Popeye Ed-U-Card Flip Animation
Thanks for taking the time to do this. There was a time when I was a kid that I was really in to flip movies, drawing them in corners of my math and English books.