Cool, thanks. Will have to try that out.
{Refering to hexaflexagons} OMNI magazine had one that you could cut out and assemble, and Piers Anthony had a book that used them as a plot device. I think that this was 25 years or so ago, because I know that this was after I got married. I was fascinated by the idea, and flexed my hexahexaflexagon until I wore it out.
I love manipulative things like this. For instance, I bought a…thingy…made of beads and wire at my local science museum. It can be shaped into a ball, an hourglass, and several other shapes.
I also grew up in KCMO, but we called them Mock-mocks. But I have heard them referred to as Fortune Tellers and Cootie Catchers too.
Wow, yeah, we didn’t make any of those. We were just the ordinary kind of nerds; book-reading ones. 
We called them either chatterboxes or fortune tellers when we used them to tell fortunes.
Sometimes, I’d paint eyes on the four outside squares and what would look like an open mouth on the inside surfaces. I’d call them “point symmetry monsters” and chase my sisters with them.
And I remember hexaflexagons, too. They were pretty cool!
I’m not exactly sure what name we had for them. It might have been fortune tellers, but that might be just because I looked them up at a later age.
Certainly, one of the main purposes of them was to trick someone into an answer they wouldn’t have wanted to give. They’d end up with ‘you’re destined to marry [MOST DISLIKED BOY IN YEAR]! Ha-Ha!’
I use them for EFL and Eng Lit now, as a revision or starter game, but they’re useful for any subject as a fun way to revise stuff - use your imagination and you can adapt them for any subject. The categories are replaced by a general question about an area of the topic under question. I only mention this because I know you homeschool. I’d use them if I were teaching multiple subjects on limited resources, like I would if I homeschooled.