Myas instrument: Guitar
Steps how to make it
small rubber bands.
1.First get an empty container/cardboard box.
cardboard box / container box
2. put the small rubber bands around the box. Place as many rubber bands you need.
(optional) A cardboard tube (from the glad wrap roll)
3. If you want you can attach the cardboard tube on the box.
Explanation: If you strum a string on the guitar it will vibrate against the wood of the guitar, this creates sound waves. The sound waves ricroche inside the guitar through the hole. When the guitar strings vibrate against the guitar the sound will be louder.