When Aidyn was younger we would sing a lot of songs that we made up ourselves eg. to the 'Hey there blimpy boy' song/tune that Homer sings, we would sing 'Hey there, darling boy' etc etc. And there were a few more that we made up...

These days I sing him the 'I love you' song from Barney (even though I hate Barney!) and I sing him the Moon song (which I got off Playshool):
Moon, moon, shiny and silver.
Moon, moon, silvery white.
Moon, moon, whisper to children,
Sleep through the silvery night.
There there, there there.
Sleep through the silvery night.