I just emailed this note to Customer Support at JBWZ.com:
"Hi, this is Nancy T. at Blogging America's Best Dance Crew. A number of readers are really unhappy that you are not offering the adult-sized JBWZ Halloween costume because you're out of the adult size T-shirts. I would like to suggest that you offer the other JBWZ T-shirts as an adult substitute, for the same $50 price.
You'll get more customers and make more money overall -- especially since ABDC Live tour is almost over so that the overall demand for JBWZ Ts will decline very soon (at least until just before XMas). You'll also make a lot of JabbaWockeeZ fans very happy. Thanks for considering this idea."
Readers - if you're still interested in a JBWZ costume but they're out of your size, I suggest you also contact them at support@tribecka.com.