not hard at all. I went to your local sign shop and bought 2 ft of vinyl. Cut it to my taste and prepared a water with kitchen soap as an applicator. Remove the back of the vinyl to expose the sticky part. Dip it in the soapy water and place on the headlight. With a credit card and a blowdrier start taking away the water left on the vinyl and it will stick perfectly. I am also in the process of placing the vinyl on the gas cap. After all the vinyl is the same color as the car