... 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 Jenny W. Chan - Origami Tree
by TLT lab Hacks
by EasyCrafts DIY
by Crafting Hours
by Amazing Easy Origami - Yakomoga
by TheUltimadeKoen
by Anna M.