Yes, lots of utility items, such as covers for small kitchen appliances have binding on the outside of the seams. Since you are not going to be needing to keep the appliances warm, you can go with a thinner craft type batting as long as it's washable. Thermore comes to mind, or a washable felt or thin fleece.
Do a bit of testing to determine the width of binding needed, and you may need to go with cutting the binding on the bias to go around curves, if there are any in the design.