maybe a bottemless mug of beer or something
You are going to go out of business if you do that!
For me, the thing that will make me return (which is the most important as far as I'm concerned) is great service, and awesome bbq sauce. Lots of bbq places are the same, and the side items are usually compairable, but if you have yourself a great bbq sauce, I will return to your place. mmmmmmmmmmmm, bbq. Of course even the best bbq sauce in the world won't cover up for a crappy piece of meat, but you get the picture.