No. They haven't done one day passes for a long time.
Strictly speaking Otakon's price is for yearly membership with Otakorp, of which Otakon is their biggest meeting, and not an event pass to Otakon itself.
Plays With String knitting and crochet commissions
(specializing in sweaters)
Next conventions: AnimeNEXT, Otakon, Anime Weekend Atlanta
Currently working on (commission): "Rainbow Star" Mabel Pines (Gravity Falls)
Currently working on (personal): Mother's Sadness (Inside Out)