a friend forwarded this link to me. it's a gif of a flexagon. the revealed faces with every turn is the cool part. i'm not sure whose handiwork this is but it's well done.
here's the link... https://24.media.tumblr.com/000b64d101228220d558bce5e09317ca/tumblr_n2308pGJal1to0mvgo1_500.gif best, vishakha nyc