Hank, Fred has a good suggestion...
Another low cost alternative is to squirt 3M 4200 into each hole and then use a putty knife to level with the surrounding area. It makes the holes almost invisible. You can also use a gelcoat repair kit that you can tint to match your boat's color. This would be a better repair but a bit more expensive.Of course if you want the holes to disappear, and have deep pockets, a yard can do it. They will grind a one foot area around the holes and fill with repair material and finish off with gelcoat to match.Terry