I was surprised to find no threads related to this year's Otakon. In any case, I did my first name character cosplay this year (usually I do an original costume). I decided to go as my screen name, Tuxedo Mask. I had a wonderful time and the costume was well received. I was fortunate to see several ladies in excellent Sailor Moon costumes, one of whom I was fortunate enough to have had my picture taken with.
If you were cosplaying at Otakon, I'd love to see your costumes.