I had written a visual solution to the famous eight queens problem seen in Universities. Many people emailed me asking for the source after having seen it. So I finally packaged it, GPLed it, and uploaded it to my website for download. I also uploaded a simple utility that will generate your get/set methods by having your declarations as input. Nothing amazing, but it certainly saves me a load of time. If you want to check these out and even get the source, visit my website.
http://www.compiledmonkey.com/default.aspx?p=code