What does this look like? (WRONG ANSWERS ONLY!)
It is an auto reloading rubber band shooter. The wheel is used to manually adjust tension. Looks like an old design - newer models have AI for targeting and IOT for remote deployment.
Definitely a small wheelbarrow with an inline 8 cylinder engine.
It's the homebrew version of the neuralyzer. You use the switches to select the frequency. The hard part is getting the subject to stare at the spinning wheel.