Since everyone seems to be all about space programs, here's a very silly joke device from 50 years back: The Zlotnian Calculator, "Official Digital Calculator of the Zlotnian Space Program"

While it was a joke, it was made by a very serious surveying instrument company, the Slope Indicator Company of Seattle, WA.

more info: https://www.mccoys-kecatalogs.com/SpecialSubjects/Zlotnian_Calculator/zlotnian.htm

re-created: https://www.printables.com/model/1672286-the-zlotnian-calculator-reproduction