Ideasaurus
Not quite a search engine, not quite a thesaurus. Ideasaurus is a tool that helps browse ideas. By examining which words appear in conjunction with the search term on websites like Wikipedia, Ideasaurus can quickly display a visual chart of ideas related to your query. Originally started as a Hackathon project, Ideasaurus is a great tool for writers, designers, and developers who need a push in a similar direction.
Flagrunner
My first experience with computer graphics, Flagrunner is a Windows-based, fully customizable, video game designed for use with Xbox 360 game controllers. The idea is simple: Up to four characters start in a randomly generated maze-like arena and play a variation of capture-the-flag using cartoon-esque weapons to fight off their opponents. The game was made using Visual Basic.NET and the XNA framework.