Toymaker and illustrator, Marilyn Scott Waters, has been creating marvelous paper toys and sharing them freely for many years. Today I got word that she's made some of her lovely watercolor art into two pdfs free for the download so that we can all make an Infinity Card.
If you're not familiar with Infinity Cards, they are one of my personal all time favorite paper card mechanisms and are really quite magical to see in person. To make it even sweeter, they are super simple to construct. No kidding. It's just four strips glued at four corners, making a two-sided square, that flips open in panel combination after panel combination.
I've made several of them myself as art pieces, where I've made wording on each panel combine to reveal meaning no matter which way the panels are flipped. I highly recommend trying to make a few to see how fun they can be for yourself. And Marilyn's gift might be an endlessly helpful introduction.