The term "Zercher" is usually applied to squats, but it actually just refers to the position of the bar, which is held in the crook of the elbows. So you can do Zercher carries, Zercher deadlifts and, yes, even Zercher shrugs.
These feel a lot better to me than regular shrugs. My traps have grown significantly since doing them. Avoid leaning back or cheating. No bouncing the weight up.
related posts
Suspension exercises for hypertrophy? Yes. Give these a shot.
Scientists from Brazil evaluated 24 different glute exercises to determine which is the best. The winner will surprise you.
Build your lats and strengthen your core at the same time with this exercise. Take a look.
Being a novice is a beautiful thing if you want to add strength and muscle to your frame at a shocking rate. Here's a program that will help you do just that.