Hi guys! Just about two years ago I created "Revealer Concealer". Remember it? I had given it another name back then: https://www.facebook.com/neorigami2/videos/1156850000997643/
I'm interested in other origami action letter folds and envelopes where you unfold the paper completely by pulling some tabs and you close it by pushing them to their original place, but it has to be an envelope or letter fold and the paper has to unfold completely. Do you know any others? Please let me know, or even better, share a video or some pictures. Thanks in advance!
