Wandering round the preview day stands I came across this which I just had to share with you!
These guys have been working in fire-based Special FX for over 30 years, and have now branched out into the world of Rock with a new website, www.rockstarpyro.com, showcasing their cool-burning flame technology. The newly-developed 2-part fuel system is safe to carry on aircraft, and has numerous safety approvals - and apparently it burns so cool it's totally safe to set yourself on fire with it. The system is capable of being mounted on instruments or on the person, and is controlled by the performer in several ways, including voice and motion activation.
Sounds pretty powerful - I wish I could get my BBQ to light as easily - though 40-foot flames would probably scare the dinner guests ;-]