-Wolf Beetle plushies? Hmmmm
-Hats with the Affinity logo's on the front. Maybe the name of the Affinity on the side, and then "Beyond Earth" written over the space in the back.
-T-shirts could be similar, black shirts with the Affinity logo on the front, and then the name of the Affinity on the back. "Beyond Earth" could be on the sleeve.
-Pose-able affinity unit action figures (i.e. Soldier morph) would be pretty cool too.
-oh man... if they could do a Civ:BE / LEGO crossover my wallet would be very sad.
(the idea is that the aesthetics of the game, I believe, are pretty good and I don't think many people would disagree)
-Maybe a t-shirt that says "I saved my Civilization from certain destruction and all I got was this lousy t-shirt" (Purity?).
-or a shirt that says EARTHLING SETTLER on it haha
Edit: I can see two people passing each other at a Con or in a store, both wearing Harmony tees. One says to the other "I see you value alien life as we do..."