Shaped like miniature skulls, and available in a variety of fun colors, Beadbrain Skull Rhythm Shakers are made of a hard plastic that'll last a long time, and are filled with beads to create that classic shaker sound. Great for the hand percussionist with a ghoulish sense of humor, Halloween gigs or even as a non-traditional way to teach kids how to keep rhythm, the Beadbrain Skull Rhythm Shakers are a cool addition to any stage or classroom setup.