I’ve been trying to make homemade bows for some years now, and have discovered a method which should allow you to build a simple but functional bow. However, you will need a “secret ingredient”, which I will reveal later.
You will need:
An empty coffee can with the plastic lid. Make sure that the can is clean and has no sharp edges
A little bit of Shaky Stuff: small pebbles, paper clips, tiny seashells.... anything small but kind of heavy. Cotton balls wouldn’t work, for example.
A pencil or chopstick
MUSICAL INSTRUMENT BUILDING - THE PROCEDURE!
For your bow to work, you will need something to make the bow strings sticky (the stickiness creates the friction that makes the instrument’s strings vibrate). I’ve tried rubbing the strings with pencil erasers, rubber cement, glue sticks and even the sticky side of scotch tape. But nothing works as well as what real string players use: ROSIN. Rosin is the dried sap from pine trees. Try asking the music teacher in your school if they have any rosin. You can also find rosin at your local music store.