LOL....OK, this raises a funny memory for me.
We had a block party a couple of years ago, and I planned on bringing some pizzas down the block. I was known among all the neighbours for making delicious "New York Pizza." But I too had no way to transport them.
So I went to the local Pizza Hut. At the time, they had recently introduced their "Big New Yorker Pizza." I went up to the girl working there, explained I needed to bring some homemade pizzas to a block party, and asked if I could buy three pizza boxes from her. She grabbed the manager, and the manager said, "Sure, no problem." I think I paid $1.00 apiece, or maybe they even gave them to me free, I can't remember now. But they were the "Big New Yorker Pizza" boxes, which were the only ones large enough to accomodate my 16" pizzas. I brought them home, obscured the Pizza Hut logo with a permanent marker, and wrote over it "Dave's Big New Yorker Pizza." It was a hit!
Moral of the story--ask your local pizzeria to buy a couple of boxes