The Idea a Day site. Provides…er…one copyright free, user submitted idea every day. Fun.
‘Manufacture a device which projects numerous little points of light onto a ceiling. Using a computer program, these can be arranged in such a way that they form the firmament of stars in the exact geographical position of the viewer, at that season and time of the night. The device would allow the user to fall asleep indoors under a perfect starry sky.’