Here is an EASY one, the Spike Ball or Spiky Cuboctahedron. If you can fold the classic origami pinwheel, this one should not give you problems at all. You can make it in various sizes, the smallest is shown here, but check out this site ...
by Fairy Toonz Crafts
by How to Make
by minicuteclub
by mikeyssmail
by Original Naked Chef
by Mukta Art & Craft
by Crochet Knitting art