I've smoked lights in the past and it can look ok for a short while but found that it fades/flakes over time (not overly long either). Sometimes pulling apart the light and spraying the chrome section black can look awesome:



Issue is the same as what the BRZ/86 owners are having. It's a tricky job as the light unit is sealed to the backing plastic. Means that you either need to cut with a dremel, or use a soldering iron/knife to remove it then seal it back up again when you are finished.

Example of BRZ/86 lights:

Before:



After:



Link to thread - Cutting open tail lights with a Solder iron! - Scion FR-S Forum | Subaru BRZ Forum | Toyota 86 GT 86 Forum | AS1 Forum - FT86CLUB