Only more spectacularly and more safely - blowing custard power upwards through a blowtorch flame, gets a nice big fireball with the added bonus of you being below, rather than above, the offending inferno...
www.thenakedscientists.com/HTML/kitchen-science/exp/rates-of-burning/
Plus, the instrument Dave has built with which to do this is known as the "custard crack pipe", due to it resembling, um, a crack pipe...
(, Tue 3 Mar 2009, 19:21, Reply)