Well, that's a practical idea, although I don't know of anyone I could trade with. They're so cheap to buy that it just seems silly to put them on eBay.Sell or trade them to someone in the US. Our pennies are close enough to the same size, and we still use them.
Come to think of it, some stores here are still selling them. I have no idea why, when our lowest denomination of coin is the nickel, which is too big for the penny wrappers.
I'd post that in the Raves thread and next time I went to the bank, I'd deposit them.
Still less work than rolling them yourself.