Business Attire Cosplay?

I'm an officer in my university's anime club and I'm looking to do business with some of the dealers at an anime convention I'm going to in the fall, but I still want to cosplay. It will also more subtly show my definite interest in the anime culture without me being Snow Fairy Sugar. Does anyone have any suggestions of business attire cosplays I can do? The only one I can think of is Mia Fey from Phoenix Wright.