Frosted film worked brilliantly. The custom cut out caused more problems. The backing sheet would have been easier to handle if trimmed before removing backing as this tangled as we pulled away backing.The border edge just got in the way. Followed instructions on you tube meticulously many times and got son to do so too. We had a lot of masking tape on rear of cut out . several bubbles appeared around cutout after the 24 hour period. The youbtube video doesn't seem to warn or go into enough detail re how to eliminate these bubbles. Our written instructions photocopy were incomplete. We had absolutely no problem and grest result with the plain, the cut out was clear, but bubbles around cutout not so good. Delivery was prompt and well packaged.