If you feel like taking a road trip, I know they they have one of these machines right here in Michigan at Marvelous Marvin’s place. These Uncle Sam machines were first made in 1908 as grip testers. Once you dropped your penny in the slot, you squeezed Uncle Sam’s out-stretched hand as hard as you could and the arrow on the dial told how strong your grip was. If you scored 300, a bell rang so you can impress all your friends. The modern versions cost a quarter and tell you the strength of your “personality.”
Either way, bonus points if you noticed one of these machines at the “Double Deuce” in Roadhouse.