https://3dprintingindustry.com/news/3d-printed-camper-wave-set-break-world-record-size-128500/
They will be printing a full size camper trailer using a very big 3-D printer. It is supposed to be 13 feet long and weigh about 600 pounds; not really big and not really small. It could be possible to 3-D print smaller campers(?). I think it has potential.
https://all3dp.com/worlds-largest-3d-printed-camper-trailer-will-be-live-streamed/
I put it in the off topic section since it is not really small or tiny.