We used to let the children make as many of these as they wanted over a week. We'd also have them decorate a 'vase' made out of a whole and a half paper plate stapled together around the edge. You'll need to use quite a few to get a good sound effect. Then you let the children decorate the outside of the tube however they like. You can use paper, fabric, leaves, acorns, bark, etc.
Some children like to use Indian designs, but others just do their own thing.
Makes cute finger puppets. Use colored construction paper to make different styles of flowers from shapes such as circles, squares, triangles, and rectangles. Glue each flower to an index card or piece of tagboard. Cut out identical set of the shapes that were used to make each flower. Place the second set of shapes in a resealable storage bag and staple one side the bag to the back of the matching flower card.