Once again, I have to sing the praises of Delicious Corsets (http://www.deliciouscorsets.com/) and their corset supplies (http://corsetmaking.com/).
I have a few new corset and costume orders in, so I ordered a fairly large amount of boning yesterday. They called to confirm and give my my shipping total about two hours later, and the boning arrived about an hour ago today-- with no mistakes, which is impressive considering the amount and myriad lengths I ordered. And it wasn't horrifically expensive-- their prices are extremely competitive.
When you call, ask for Psydde Delicious (yes, that's his name, it's pronounced "Sid," and you wouldn't believe how much metal this guy has in each ear; I tried to count the piercings once and I couldn't), and tell him Nikki sent you.
Gotta support the hometown homies.