I made this low poly Golfball in Blender.
The dimples in this model are purely created by the normal map, they aren´t actual geometry. If you need a higher quality golfball where the Dimples are real Geometry check out my high poly model on my site. They have the same texture, so you can use both interchangeable, depending on the quality you need in the shot / game.
You can use this model in anything you like.