Hahaha. That’s pretty awesome. (Though personally? I’d find doing the beading for the numbers more of a frustrating challenge.)
I have a pattern somewhere for a hyperbolic-type figure, where you just keep doing 2 stitches in each previous row’s stitch until the thing grows out of control, but I’ve never sat down and made it yet.
There’s actually a wealth of sites out there if you Google “math and crochet.” Like this one. It’s pretty cool.
(Two geeky things I love, together.)
I will say I think KNITTING an isocahedron would be even more difficult than CROCHETING one. There is a pattern for a knitted dodecahedral ball out there, though.
Probably more than you wanted to know but this is one of those things that makes me happy.