Acrylic is going to be tough, I would probably use some 3/16' thick 80-90D rubber and hold it in a mill vice with a V block. Do all the drilling and tapping without re-fixturing. you will probably have to polish the ball again when you are done anyway.
Originally Posted by Wraith
If you can't be bothered to pick up your 12 grams, you don't deserve to be playing on a field. You have pockets. Use them.