Thanks for all the great entries, we enjoyed looking through them all; but here are our winners:
Skin:
ShadowWolf86 for the AliensPrize:
Super rare Robot or Alien themed head item
100k Nbz
50 Points towards your team
Chunk:
happyman323 for the Robots/visit happyman323 (Check it out)
Prize:
250,000 Nbz
Super Rare Head Item (Robot or Aliens)
50 Points towards your team
x10 Free Chunks