That's pretty awesome.Me and another guy made a trailer park, he built the trailers first (which mostly looked like barracks), but in return for a spot in the trailer park I helped him redesign all the trailers.
My personal trailer is customized to my liking, both inside and outside.
The trailer park owners trailer was built slightly bigger, so I redesigned it into a more luxurious model
(However the blue color was added by him, he liked how I colored mine)
Next to my trailer used to be a trailer someone else customized to their liking, he bought one of the trailers then rebuilt the design with diamond and gold blocks.