There are a few things you need to do in order to put reindeer antlers on a car. First, you will need to find a reindeer antler piece that is the right size and shape for your car. Next, you will need to cut the antler piece into small pieces and then place them on top of the car’s headlight lenses. Finally, you will need to apply pressure to the pieces of antler so that they stick to the car’s surface.