Sell Limited Edition Collectible Holiday Sheetz branded toy trucks that match the style and build quality of the toy trucks sold by that green colored gas station. They would command a premium price point, sell out fast with Sheetz Freakz and make the brand a part of people's holiday memories.
Have two limited time bistro style sandwiches available per month. Example, a turkey pesto caprese sandwich on multigrain bread and a vegan option like a beet and lentil burger topped with apple slices, sauerkraut and Dijon mustard on rye bread. I think the veg option is important and if well advertised will draw in a lot of customers.