My son likes to put his rattles in them. An old set of keys is a great distraction for a fussy baby. You can jingle them in front of your baby to encourage him to look at you. Plastic soda bottles without their caps are another inexpensive way for your baby to have fun. Make sure the bottle has been cleaned properly before giving it to your baby.
Keyboards make wonderful clicking noises when they are banged on.
Remove all wires before allowing your baby to play with it. Be sure there are no loose keys on it. Babies love to play and they do not care if they have the latest fashionable toys. It does not have to be expensive to keep your baby happy. Try out these tips and try to find other creative and inexpensive ways to keep your baby amused.