[Ari] and Jake from Noisebridge were out on the beach at Toorcamp when they saw some giant kelp and had an idea. Using a pocketknife, [Ari] cut a mouthpiece into the stem and cut the bulb in half. After some practice, they figured out how to play the kelp horn. [Jimmie], shown here, was able to get a pretty good range of notes out of it by playing it like a bugle. [Neil] tried to cut holes into the stem to play it like a flute.
The horns were fairly loud, so they attracted a few people who wanted to make their own. Once the group had six or seven horns playing various tones, they headed to the camp to show off their new instruments. They weren’t quite in tune, and didn’t taste very good, but they did make a variety of odd sounding tones. Leave it to a camp of hackers to make musical instruments of whatever they find washed up on shore.