Here is another attention getting idea for you. I made poster size signs with photos of our food that we put up along the top of the EZ-Up or awning. When people are walking along and can't see signs down low because of crowds, they can see your signs overhead. I have pics of the signes I use on this page.
http://www.rollinsmokebbq.com/Vending.html. The visuals can bring them in as fast as the good smells.