Now I just need to convince them to integrate it into the next edition of VS...
.NET compiler for the LOLCode language.
LOLCode is an emerging esoteric (and hilarious) language based on the dialect used in LOLCats images. It's been siezed upon by a group of people (myself included, now), and is being expanded into a real, workable, turing complete esoteric language (though nobody has proven its turing completeness yet!).
The LOLCode.NET compiler is now working, and as a nearly-free bonus for using the .NET platform, you can even debug it in Visual Studio:
I still can't believe I'm looking at LOLCode and its x86 disassembly in Visual Studio.