Found a place that sells 5 and 6 gauge strings

[Will]

http://www.garrygoodman.com/octave4plus.com.htm

A single .005 string cost as much as a whole set normally would, but I think it's clearly worth it. Imagine teh meedly-meeedlies!

[ekwatts]

Hahaha what the fuck. Why on earth would you use strings that light? All I can figure is for Nashville tuning, everything one octave up. But real people don't actually do that, right? I like how it says ".003, .004, .005 not yet available!"

.003 must be getting close to a strand of hair.

[NickS]

I used 6s briefly when I was about 17, but the top string kept breaking.