The Datacolor SpyderCube is a RAW white balance tool. The balanced gray cube allows you to capture primary and secondary light sources to determine and fine-tune color balance. For more on the SpyderCube, read the official announcement:

Datacolor SpyderCube RAW Calibration Device >>

I've been seeing RAW calibration tools for a while. But this is the first one that I've felt like I should get. It looks pretty goofy, but I think it's designed to get the job done in a much more complete and elegant way than previous, simpler tools.