K.W.
You might try making a rain maker. Fill the can about half full with dry rice and then hot-glue the lid onto the can so it can't be pulled off. You can decorate it with construction paper and stickers, but I wouldn't recommend things like buttons because they're easily pulled off (even if hot glued down), and are choking hazards. Then you shake the can like a rattle to make a "rain" noise. You might also be able to put a funnel, inside so you can turn it upside down and the "rain" will slowly go down the funnel. Good luck!