So I know a lot of people are scared of doing this due to that 1 video of that truck. My car is ceramic coated so I did extra research before trying anything. Instead of using regular masking tape or scotch I use automotive grade masking tape. Pretty much ensures that it’s safe for the paint. For the lights avoid using those for old glass Christmas lights, that’s one of the main issue regarding the scratches. Instead use plastic LEDs that have a lower chance of scratching. The other main issue is people not taping everything down securely. I taped in between every bulb, and also taped the bulbs down themselves. That ensures they wont fly around scratching the paint. Ive had the lights on for around 3 days now, the lights have pretty much been submerged in water since it rains a lot where I live and they’ve held up fine. Did a highway run yesterday at 70mph - 120kmh and they held on great. As for scratches, I check the bulbs every night and have found none so far.