Where to buy...

[stormsdotter.livejournal.com]

This is a long shot, but I'm trying to find a 40"x5" mailing tube (or box.) I'm going to new York Comic Con, and I'd like to bring some fan art on the bus for Jim Butcher. The catch is that the container has to be really sturdy, to survive being put in the luggage compartment of a bus under the seats.

I've been to art supply stores, packing stores and even walked into a few retail shops and asked. Where can I get something like this in the next day or two?