There’s a lot of strange equipment in any gym, from the many types of barbells to single-task items like the ab wheel and bicep blaster. But, by far, the biggest treasure trove of “wtf?” is the bucket ...

When you think of biceps, do you think bulging like Arnold Schwarzenegger? Or maybe that signature double flex pose comes to mind? Whatever image you conjure up, biceps are more than just for looks.