While upcoming events like PAX Prime, Dragon*Con, and others like it might get the big headlines, there's still other shows that are coming up that deserve your notice. If you're not going to one of the bigger ones, you can still get your convention on. GASPcon is in their 16th year and they're looking for vendors interested in coming to the show (as well as, you know, regular patrons as well).
GASPcon will be held on November 6th through 8th at the Monroeville Convention Center in Pittsburgh, PA. This is their second year at the MCC and they've got space to spare for any vendors that might want to come and partake in the festivities. The booth prices are cheaper than any other convention around, so it might be worth your effort to look into it. Conventions can be a great place to get your product shown to the public.
The show's coming up quickly, so be sure to get your application for vendor space in as soon as possible to reserve your spot.