Make Rock 'n Roll Instruments! Start by collecting rocks of all shapes and sizes. Then assemble! For the Rock Drum place 5 or 6 rocks of various sizes in a coffee can, sealing the top with tape. For the Rock Tambourine place 6 or 7 small rocks between 2 paper plates, tops facing inward. Then, staple or glue the plates together. For the Rock Shaker place 10 mini rocks inside a small plastic container and secure the lid. For the Rock 'n Roller place 4 small rocks in an empty mailing cylinder or paper towel roll and seal the openings. Now you're ready to start a Rock 'n Roll band!