If you have an interest in coins or Canadian history, you might want to check out this offer from the Royal Canadian Mint. Right now you can get a package of five $2 commemorative 1812 coins featuring the HMS Shannon for $10. Since the offer comes with free shipping (and no tax!) you are essentially paying $10 for $10 worth of coins, but by purchasing them directly from the Mint you're getting new coins that haven't been circulated.
There's a limit of three sets of coins per customer. At checkout, be sure to check the "lettermail" option to ensure you're getting free shipping.