Originally Posted by old_dude
John Butz and I do Farmers. We use dumbbell a but have seen those that are essentially a long barbell with a large grip. You also may want to look into large grip items such as Fat Gripz or 2-inch bars.
I've got Fat Gripz if you ever want to borrow. We have the 2 inch bars at my gym.
I also do Farmers with DB's. Good stuff man!