Have you ever heard of them? It's a cross between a banana and a s'more. Just split a banana about 2/3 of the way down (through the skin and the actual banana), pry it open, stuff it with toppings, wrap it in foil, and place it over the campfire!
You can make any kind of banana boat you want. Try stuffing in some milk chocolate chips, mini marshmallows, and sprinkle it with Golden Grahams. Or, bump it up a notch and go the peanut butter route. Stuff in some peanut butter (peanut butter chips might be easier) and regular chocolate chips. Or if you really want to get crazy, make a strawberry hazelnut banana boat with strawberries, Nutella and chopped hazelnuts...YUM!