I am really eager to know how to achieve those coconut shoulders! Could someone who has them that isn't a drug user please say how they got them?!
If you're doing this, stop it immediately. You WILL hurt yourself.
Muscle gains are made by doing movements with physical resistance (weights). We need to break down the muscle fibers through intense exertion, and then our nutrition and rest make sure they're built back up, stronger and bigger.
Arm circles have no resistance besides air resistance, and the weight of your arm.
If you're doing more than 20 reps of anything, you're training stamina. Not muscle growth. So imagine what we're thinking when you say 60,000 reps. Do not do 60,000 reps of anything per day.
You have to also take into account that whenever you do a movement, there is mechanical damage being done to the joints. Three sets of 8-12 reps on the incline bench is going to give you more resistance than all of those arm circles, while at the same time not gnawing at your shoulder joints.
Already been said but:
1-8 Reps Strength Training 9-12 Reps Hypertrophy Training <--- You want to be here... 12-15 Reps Stamina Training`
Basically any kind of progression weight-wise using a hypertrophy rep range will gradually develop your shoulders to how you want them.
Shouldn't really have to do this for you (Should use your initiative)
However Here is a list of Shoulder exercices http://www.bodybuilding.com/exercises/finder/lookup/filter/muscle/id/12/muscle/shoulders
NO. You need a lot more resistance to grow your delts, the kind of resistance that won't allow you to do 60k reps, or even 60.