I made marshmallow fondant to cover this Golf Birthday Cake (recipe can be found online and I have my own that is made a different way for some parts). I colored the grass green. I wanted the grass for the golf ball to be smooth like the golf course.

For the ball, I used a half of a ball pan from Wilton. I cut a straw in half and inserted both pieces into the square cake after fondant was applied and put the half ball on top. The straws were support so the weight of the ball would not sink into the cake later. The holes of the ball were made with a pencil eraser that was cleaned before doing the holes. I used some golf items we had at the house, and the flag is made from a straw with construction paper.