For the envelopener, I published directions for how to create them on Origami Place's Teaching Tactic's webpage at https://origamiplace.com/teachingtactics/. The directions are in bullet 6.
These are the two links you will need listed on that page: * https://www.youtube.com/watch?v=bgzzEfWcGfA <https://www.youtube.com/watch?v=bgzzEfWcGfA&feature=youtu.be> &feature=youtu.be * www.thingiverse.com/thing:4689685 <http://www.thingiverse.com/thing:4689685> Lisa B. Corfman at KindlingCreativity.org <https://KindlingCreativity.org> <http://www.origamiplace.com/> OrigamiPlace.com | <http://www.origamimuseum.org/> OrigamiMuseum.org | <http://www.jewishhope.org/> JewishHope.org