Collection: Under $100

Stirling Engine Kit Hot Air Engine Motor Model Educational Toy Electricity Generator Colorful LED

Low Temperature Stirling Engine Motor Steam Heat Education Model Toy

CDI Ignition with Spark Plug Starter Kit for RETROL HM-01 Hit and Miss Engine Model

MAD RC DIY V8 Engine Model Kit for Capra VS4-10 Pro - Build Your Own V8 Engine That Works

Stirling Engine Kit Motor Model DIY Educational Steam Power Toy Electricity Learning Model

Starter Kit for SEMTO ENGINE ST-NF2 Engine

ENJOMOR DIY Hot Air Stirling Engine Model Building Kits Golden