The Natural Radio is controlled by rocks and operates using a scale. The more rocks you put on the volume scale the louder it gets. Same goes for frequency. Now I'm not very coordinated, so I couldn't imagine getting more than two or three stones balanced. What if I want to listen to 105.7? That seems like a lot of rocks. Maybe sand would work though. I'm much better with sand. You should have seen the wicked castle I built on the beach during my last vacation, it was awesome. Well, until that dick Poseidon destroyed it with a big wave. He still hasnâ€™t forgiven me for that lusty night I spent with his sea-goddess Amphitrite. That's right folks, Aquaman is my son.
Several more pictures of the device after the dive.
Rocky Radio [yankodesign]