you can take silicone and fill in the holes smooth and you can even find colored silicone maybe even to match the paint, if you spread it in the holes then let it set up for a minute or so and go back over it with a wet cloth it will smooth up nicely and also wipe off any excess, or you could just cover it in vinyl both temp fixeds of course, either one wouldn't look to bad especialy if you replace the wing with a stock one, it will disguise it a little better