The basic idea involves blocking the end of a syringe, and then pull the plunger to create a vacuum ... consider using syringes as basic hydraulic actuators for model builds.
Then there’s the Switch Lite, the cheapest Switch model, which has a 5.5-inch LCD screen and built-in controls ... a release this year and offered few hardware details about the Switch 2 ...
Even the spring for the plunger printed plastic ... and two Arduinos that handle all the solenoids, scoring, and actuators. The theme is based around a favorite bowling alley and other landmarks.