Summary

I am not planning to make a ten sided die, or the flying vehicles. I will look for those on here and post links to those, since they wouldn't be my own work. But no sense reinventing the wheel, at least right now. I've only made the pieces that are unique to The Good and the Beautiful Math 2 curriculum.

Both cubes printed fine without supports!

You will need to paint or use markers to draw stars on the backs of the number tiles for the star logic activities.
https://www.goodandbeautiful.com/faq-help-extras/simply-good-and-beautiful-math-2/

Here is where I'll list the flying vehicles that I have successfully printed to use.
Biplane: https://www.thingiverse.com/thing:4190123 (you'll need to reduce the scale... mine is about 26 mm long and it worked fine except I did need to use a drill to widen the hole so it'd take a 2mmx12mm screw)

Rocket: https://www.thingiverse.com/thing:43962 again, you'll need to reduce the scale. I went to about 30 mm tall? It failed several times until I added a raft.

Helicopter: https://www.thingiverse.com/thing:1817504 I printed this at 20% size but only the copter body and the rotor. I did the rotor at 20% on the x and y axis and 40% on the z to make it thicker and stronger. Tree supports worked best for the body. I used a staple (unfolded, trimmed, and just bent on the top and bottom) to connect the body and rotor so it can spin freely. Bit of fine work to do but cheap and easy. I also used a straight pin to widen the hole a bit.