So long since we don't remember a project as ingenious as this of Mini Eco, which combines 3 instruments in one can: a bongo, a shaker and güiro.
To do this, empty and clean cans (making sure that the edge is not sharp) and fill with rice or lentils. Next, cut the bottom of a balloon and place it on the can, secured with a rubber band. You can compliment it with chopsticks for your children to unleash their musical and rhythmic instincts with the bongo, move the can as a shaker and rub its side imitating the sound of the güiro. Pretty clever.