Here's your chance. You can make several types of musical instruments with rocks you might find in a park or gravel path. Pebble Maraca Gather a few handfuls of pebbles and drop them inside an empty coffee can or small milk container. Try hitting different parts of the container to get more sounds. Also, you can fill the container with a little water to get a softer sound.
Drums Find a medium rock and one large rock.
Use the two rocks on a hard surface to make a beat. Then get three to four long, plastic cups and fill them with different amounts of water. Drop the rocks in different glasses. The Clapper Find two rocks that are very close together in size. Hold one in each hand and lightly tap them together.