How to get inspiration for a cool/enjoyable programming project.

Hey HN!

I'v been lurking ycombinator for some time just reading posts and checking out others projects that they have submitted to the site. All of these projects have been really cool, and seems like while sometimes it may be frustrating developing them overall the experience can be pretty enjoyable. I am a college developer with experience in C++,php,ruby,python,coldfusion, and dabbling in some other things. Which leads me to my question, how do the majority of you get inspired for a personal project / startup idea? I have been looking for something to do in my spare time to enhance my skills and enjoy working with technology. I really don't want to do anything to make money, just enjoy creating something myself. Sorry if the question seems vague or out of place.