The omega star is a wonderful six piece modular, but extremely difficult to fold with perfect points unless you are a very precise folder. I am not. When I complained to Alice Gray about my sloppy points, she taught me her method of folding the star. It’s a slower process, with lots of pre-creasing, but the results are well worth it!
This model can be folded from foil or Kami, but for a first try I suggest using six pieces of foil, preferably two pieces each of three colors. 6 inches (15 cm) works well.