ckhokie
Supporting Member Level 69
You can buy the paint and do it yourself. It's pretty easy. I think the kits come with some sand paper, the tint, and some clear coat.
VHT Nightshades is what you're referring to, I believe. That can look ok if you're sure to wetsand and clear it correctly.
However, I would probalby go with Lamin-x if I were going to tint my tail lights