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Picture of Shuriken Throwing Star From Bicycle Sprocket
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

Picture of 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.
 
Dear Charlescranford,

You are right; it does look like it wants to be a throwing star.

I've made stuff from old cassette cogs before but had never noticed the similarity until now.

Despite not having any use for these, I will have to make one.

Nice Instructable.

Kind Regards

FOH


: )
Photo 8.jpg
Thanks for the comment. I am not sure if anyone has a use for these. I don't even know if they were useful to ninjas. I think you will find that they are great fun to throw at a big piece of cardboard, plywood, or the side of an old shed.
Just remember to be careful.
darrenhall2 years ago
Cool, very cool - - ya didn't just sharpen up the sprocket tips and call it done, ya took some time and trouble - really like this - aaannndd ya get more than one star for ya money.

Good job - you get my vote.

DZ
CHARLESCRANFORD (author)  darrenhall2 years ago
Thanks for the comment and vote. Multiple sizes are pretty cool. And remember, you can get old sprockets free at your local bike shop. Free is always good.