I think there's already a thread for Kuroshitsuji in here... But oh well!
I'm doing a Ciel cosplay just for fun after I finish my North Italy one from Hetalia,
might wear it to the con but I may also have a Madam Red, Lau, Grell, William T. Spears, Undertaker or Fred Abberline done by then.
Since there are always great abundances of Ciels, Sebastians, Madam Reds and Grells, I'll probably bring the Undertaker.