Ok, so its not really yoga, but it might help entertain a few people in a constructive and interesting manner for a little while. So if you fancy having a go at making your own, please download the pdf files and get cutting and sticking. Good luck as some are pretty tricky. Do let me know how you get on.
If you'd like to learn a little more about them, head on over to maths is fun where I got the original plans from https://www.mathsisfun.com/platonic_solids.html