Projects on the playa are a special thing. The difficulties are many, and sometimes things do not work. But through the process magic can happen. I've done a few since 2009 and here are some choice pix.
A spinning fire element, with a crown controlled mechanism for spin. Also taken to Fire Festival, Telluride, Breckenridge, Critical Massive
Tesseract 2011, '12
A 6x6x6 cube with 216 individually controlled (microsoft kinect) interactive fire effect.