... 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 Origami School
by 折り紙の時間 / Origami Time
by enjoy paper! origami tutorials
by fadinou
by happypuppytruffles
by Handmade
by SkyHan