Funny you should mention this now... just a couple of days ago I spent an hour or so shaking a salt shaker in front of the microphone for my Pawprint song because I couldn't find a shaker sample I liked...
Felt really stupid during the recording
but it did work in the end.
Been experimenting with glasses with different levels of water in them too, I liked the sound, but it's a pain getting them reasonably tuned.
Bet there are lots of really cool sounds one could get from things around the house, just experiment !