Is your vacuum on the fritz? Has your radio given up the ghost? If it can’t be fixed, don’t throw it out. Give your child a screwdriver and let her remove all of the screws and take it apart piece-by-piece (with it unplugged, of course.)
This is a wonderful way to teach your kids about the inner workings of household items. Make sure she knows that she is never to take things apart unless you give her permission.