... Here's an easy modular 8 point star (also called octagon star or Pinwheel-Ring-Pinwheel) made with 8 square papers, once folded it slides into place. I don't know who made it so credit it due. You can find the diagrams here:
by Henry Origami
by BeginnerLife
by PaperMade - Paper Crafts & Things
by Colors Paper
by HLSS Media
by OrigamiFuns
by Dr. Origami