Not sure if any of these have been said, Capes? A Batman Cowl or Outfit! Darth Vader Outfit. A Sonic Screwdriver somehow? Adventure Time Finn costume (Green Backpack, White hat thing etc.) C3-PO or R2-D2
A cowboy duster, definantly. With the Novakids, it's a given, but still. Perhaps some TF2-inspired outfits. I'd also adore a suit, and sunglasses so my group can become the Reservoir Dogs
Sorry guys alot of these things are copywrited. I would like to see a Ninja costume, or some sort of hide of an animal with a cape and a hood. I want to be a Floran hunter.
A kitsune mask. If I can wear a fox mask throughout the game, I would cry tears of joy. Every game seems to never think of the folks who like to dress up with masks! Maybe Starbound wont be one of those! ^w^
I would like to have a black shirt with the Atari logo on it. I know it's simple but I'd like to have one.
Hmmmm, perhaps Mario/Indiana Jones vanity items (as mentioned above)? and for thoes who've played it: 'I Wana Be The Guy' vanity stuffs.
Kamina's awesome glassess pretty please (Tengen Toppa Gurren Lagann)? And maybe Quote/Curly Brace hat/earphones form Cave Story?