Help Dad improve his putt with an awesome gift this Father's Day. Just click over to Walmart for their Value of the day that just happens to be the Practice Putting Green & Callaway 18-Pack Golf Balls Bundle for only $50. A must for any golfer, this putting green can be used inside the office, or outside and includes the pro putting mat and Callaway golf balls. It'll quite possibly be his favorite gift yet! Available at this price only on 06/04/2011.