This Instructable will show you how to make a Shuriken (Japanese throwing star) from an old bicycle sprocket.
WARNING: SHURIKEN ARE DANGEROUS! MAKE AND USE AT YOUR OWN RISK. THESE ARE BANNED IN SOME COUNTRIES. THEY ARE FUN!
Step 1: Materials
The only material you need is an old bicycle sprocket. Front or rear sprockets would work. Rear sprockets wear out faster, so they are easier to find. If you do not have your own old sprockets, you can ask at your local bicycle shop. My local shop had a special trash can full of old metal bicycle parts set aside just for "artists" like me. Remember to say Thanks.