do not know if this is a serious question or not but no it is not that hard to install you own grips in a bowling ball unless you have to drill the holes to allow the grips to fit then you have to plug and re drill the bowling ball to accommodate the grips the plugging or initial drilling takes some experience to do it is a job best left to an experienced bowling ball driller.
I had the ball re-drilled and finger tips installed. My average went up 25 pins PER GAME. The ball wasn't getting enough revs because it was drill incorrectly.