My first attempt at Module Origami in ten years was the Triple Dodecahedron. This is a 12 Sided ball, 3 balls in total and each with 30 modules. This is classed as Intermediate Grade.
Smallest Dodecahedron (30 modules)
Double Dodecahedron (60 modules)
The Completed Triple Dodecahedron (90 modules)
This took me 2 days of spare time to complete (approx 4 hours) The first (the largest) was the hardest to complete. But once i figured out what to do the next two were far easier. Im going to try later to apply this to my microgami techniques and see how small i can make the ball. My goal is smaller than 3 cm