The T-Guitar

This instrument is made out of a plastic jug, bamboo wood, screws,
rubber bands and zip ties.

It is a member of the orchestral string family.

Plucking the rubber bands produces the sound.

If you tighten the string, you get a higher pitch and if you loosen the
string, it makes a lower sound.

The volume is controlled by whether you strum the strings harder or lighter.