Take the two rods, and wrap half of the elastic bands around each end, binding them together. You are going to have to fit your balls between that gap, boy, so make sure you can pull them apart a little.
Now, get on your knees. It's time you were humbled.
Push your balls between the two rods, and bring the rods behind your thighs so that your balls are held backwards and your cock stays free. You'll be needing that.