A few years back a multihull sailor friend wanted to face the recession proactively by building teardrop trailers. Its really a pretty good idea to use boatbuilding technology to do that. I designed one using a sandwich of 3mm plywood faces with 3/4″ pvc core. Biaxial corners and glass cloth on the exterior and wear surfaces. I recall he built it bright. It is light, strong, quiet and insulated. He had a budget of one hour design time, so the 3D model is pretty spare. A little time spent scaling the wood grain and adding some homey details like windows would have helped the cuteness. There it is.