What you will need:
A Flathead screwdriver
A sharpie marker
And a golf ball
Step 1: Marking a Line
First you want to take your sharpie marker and draw a straight line around the circumference of the ball.
Then take your saw and cut along the line until you can see a different color inside the cut, do this all the way around the ball.
Step 2: Prying Off the Shell
Now take your Flathead screwdriver and wedge it under one side of the shell by twisting it back and forth.
(BE CAREFUL IF THE SCREWDRIVER SLIPS OFF THE BALL AND HITS YOUR HAND IT HURTS!)
Once you get the screwdriver under one part of the shell shift the screwdriver a bit to the left and continue prying. Do this until the shell pops off.
Step 3: Still Prying Off the Shell
Now wedge the screwdriver under the other half off the shell and pry it off just like the first half.