You can even make these origami shapes and hang them randomly around your house. They are a little addictive :)
You'll need scrap book papers, small branches, string or twine or wool & fishing line, scissors, and a hot glue gun.
Ok, so here's what you do in picture form:
Hopefully my pictures are self explanatory. Let me know if you get confused! Once you have made one, make another the same size. For each geo shape you need two pieces that will glue together. Poke a small hole in the top of one piece and thread string/ wool/ fishing line through with a decent knot in one end to hold it up.
The next part is a bit tricky where you place the two parts together using your hot glue gun to join. I think it's easy to go around and do one 'point' at a time, until you've glued all of the points together.
Then, go crazy! Hang them from twigs like I have done or dot them throughout your house :)
Have fun :)