John Garrott / Elise Fauveau / Dian Luo
These rings really light up a room. They could also light up your curtains. Seriously, you may want an extinguisher nearby.
Check out Texas metalsmith John Garrott's "Ignition" series, in which wood and alcohol are burned while "held in trough forms or architectural armatures."
Brass "matches" ring by French designer Elise Fauveau.
LED neckpieces by the UK's Dian Luo.