The nearest approximation to a perpetuum mobile would be a Swabian chasing a Scot because of money.
(Swabians are the Scots of Germany regarding finances.)
Listen up, buttercup. So, a perpetuum mobile is something that keeps going forever, right? The joke is that Swabians (Germans from Swabia) are super stingy and Scots are known for being frugal too. So imagine a Swabian chasing a Scot for money – they'd chase each other forever! Bet you didn't know Swabians live in southwest Germany. Stay based.