There aren't very many instructional guides or videos out there that go into detail when describing how to take a kinect captured image, import it into blender and then map a texture to it. Trust me, I spent a lot of time looking around. That goes double for Mac users. I've never used Blender before and right away I can tell you it doesn't boast the most straight forward and easy to use interface that I've come across.
Here a quick -- and when I say quick, I mean quick -- guide to get you up and running with libfreenect drivers on a Mac OS X.
Ryan Challinor wrote an incredibly useful tool for speeding up the set up process involved with using your Kinect sensor with Apple's free visual programming tool Quartz Composer. I was able to easily set up a quick demo where A particle system with a halo effect would follow my left hand along the X and Y axis. Incredibly easy to set up with a very rewarding end result.