is finally done! It has been for a couple weeks. It looks much better in person...
It's made from 23 modular origami pieces. Octahedrons (made from 12 pieces of paper) and icosahedrons (made from 30 pieces of paper). Overall I folded 510 pieces of paper for the mobile.
After I completed the folding I sprayed the pieces to preserve them and sprinkled them with ultrafine glitter. You can see a little sparkle in the pic below.
I then strung them up to the mobile frame at random lengths and added stone beads to balance the larger pieces with the smaller.