The Dornier Seastar is a turboprop-powered amphibious aircraft built largely of composite materials. Developed by Claudius Dornier Jr [de] of Germany, it first flew in 1984.
The production was stopped a few years ago, but In November 2018 the company received US$170M in funding from its Chinese backers to construct a manufacturing facility and one prototype for flight, with production to follow in 2021.
That's a nice one, Walter. If you watched my video it shows there was a design for a luxury five decker as long as a football field. It wasn't attempted because nobody wanted one.