Before you consider creating art that utilizes fire, you must take into consideration both the fire safety guidelines and the approval process your project will need to navigate in order to be licensed to burn at Burning Man. This multiple-step approval process is not meant to bog artists down, but rather to ensure that all safety requirements are adhered to. You can find the fire safety guidelines here, as well as more information about getting your fire art approved: http://burningman.org/event/art-performance/fire-art-guidelines/