[DS] alien figures in 6mm

Inspired by the SG thread on 25mm alien figures, I'm looking for aliens
in 
6mm.  I have some of Adler's Khiff,  Irregular's not-Ewoks, and
Irregular's 
aliens in combat armor (indistinguishable from humans in combat armor). 
I 
know Scotia and HeroicsRos make aliens but I haven't seen them.  Can
anyone 
describe them, and are there others that I'm missing?
Thanks,
Jed Docherty