There are several themed campers that can add to your adventure, so, of course, we love that! Most are outfitted with a sleeping area, an area to keep some dishes and cooking supplies, a place for water, and some even have electricity.
These little darlings are attached by trailer onto your vehicle. According to people in the know, they are lightweight enough to pull easily. I can only imagine the attention your family would get driving one of these into a KOA park.
http://tinyyellowteardrop.blogspot.com/2013/01/rent-teardrop-trailer.html