Custom interiors are not only for private-jet owners; AirJet Designs has imagined a concept for a casino that could be featured on airliners and private jets. The design, based on the Boeing 777 interior, provokes airline operators and charter companies to think about providing what Jean-Pierre Alfano, founder and creative director at AirJet, calls “new social travel experiences for the long-haul traveler.”

The luxury lounge features casino games tables and bar service, with space for passengers to move aro…