The Golf Set is a collection of three differently colored golf bags introduced in Doubutsu no Mori. The three items became an official set in Animal Crossing: Wild World, however the set was discontinued in Animal Crossing: New Leaf when the Green and White Golf Bags became customization options for the Blue Golf Bag, which was renamed, simply, Golf Bag. Despite having the same shape, the arrangement of the golf clubs within the bag change depending on the color, as does the patterning.
Animal Crossing: Wild World
Animal Crossing: City Folk