This is an old MOC from April/May 2017. It was created as part of the 'Nexagon parts festival' on Tim Johnson's excellent blog New Elementary. (Seed part on Bricklink: https://www.bricklink.com/v2/catalog/catalogitem.page?P=27255#T=C )
Thanks Didier! I've always thought parts of this design would fit in well to a microscale spaceport or something... something to squirrel away for later! ;)