Amazon.com: PeleusTech All-metal Vacuum Stirling Engine DIY Hot Gas Turbine Stirling Engine Model for Teaching, Gift : Toys & Games
China has carried out the first test of a Stirling Engine in space. NASA too is investigating Stirling Engines, which may be used to power deep space exploration or Lunar/Martian bases :
ENJOMOR Metal Gamma Hot-air Stirling Engine Model with Bulb Educationa– EngineDIY
Amazon.com: PeleusTech All-metal Vacuum Stirling Engine DIY Hot Gas Turbine Stirling Engine Model for Teaching, Gift : Toys & Games