... 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 Art And Craft Point
by Origami Tutorials - Tatiana
by enjoy paper! origami tutorials
by Artistic Dolly
by Origami Paper
by Let's Craft It
by TLT lab Hacks