Did this one up back in 2017 for an assignment in a GNED program I took called History of Animation. This was one of the options for that assignment, where you create a flip animation and submit it. I forget the name of the flip animation site in question, but it was what I used to make this one.

Edit: The flip animation site was called flipAnim after giving it a quick search on a whim

Site address: https://flipanim.com/

It was my first run at doing a flip animation, but it really shined by the halfway point.