This is Recycled Mini Music Shaker Craft is super easy to make!
I used an empty cake decorator container but you could use any kind of bottle/container with a lid. My son was barely a year old when I made this so I made it without his help, but older children could definitely help add the stuff for the inside. I put dry rice, dry beans, and glitter inside this one. You could also use beads or anything else you can think of. When you are finished adding everything, glue the lid shut with a strong glue or hot glue it in place.