The diddley bow is a single-stringed American instrument which influenced the development of the blues sound. It consists of a single string of baling wire tensioned between two nails on a board over a glass bottle, which is used both as a bridge and as a means to magnify the instrument’s sound.
In this video I show how to make a guitar using recycled materials and an incredibly simple design. We only need three parts, and 2-3 knots. The parts used for this project are a 2 liter bottle, a 3 foot length of ½ inch diameter PVC pipe, and a piece of string. NightHawkInLight
I use fairly strong gardening string for the bass version of this guitar, and kite string for the standard tuned guitars. Fishing line would be another great option.
The Diddley bow derives from instruments used in West Africa. There, they were often played by children. The diddley bow is easy to make and fun to play.