Post ideas of what you would want as a custom character item. Get as crazy and silly as you want.
Here are some of my ideas:
Shade leather boots: who doesn't want to run around in flaming purple shoes.
Orange shotgun shirt (from co-op and campaign): why isn't this in already.
As long as we're doing the above, all parts that we don't have from co-op and the campaign, like the armored guys' helmet.
Emblem tattoo: no shirt, just emblem tattoo on the chest.
Don't dis mah post.
Gestapo Outfit from Pink Floyd's The Wall
Assassin Hoodie + Hidden Blade Bracers
Wendy's Baconator Hat
Dr. Horrible costume
Ash from the Evil Dead costume, complete with a swappable chainsaw, metal gauntlet, or regular right hand
Guardian of Shambhala outfit
I think if ND combined the customizations for each character into one individual, I'd be happy (no more desert, UDF, wetsuit drake. All one character, with interchangable clothing). But anyway, I think it'd be cool if you could play as a zombie spaniard or a guardian, that'd be cool. And heist options for Drake, Flynn, and Chloe. Or even for the custom hero/villian.