Edited May 1, 2019
at 10:12 AM
3M 39008 Headlight Lens Restoration System https://www.amazon.com/dp/B001AIZ...VCbHK4ZVBK
Amazon has the 3M Headlight Restoration Kit on sale for $10.50. These retail for about $25 and are usually at least $15 on Amazon. As always, shipping will depend on if you have Prime.
These kits work pretty well for hazy or peeling headlights. They are infinitely better than the liquid only kits. I believe they used to come with a coarser grit to start, and it really needs it. The first step is 500 grit and should probably be more like 300 to help get the imperfections out; that being said, they will take headlights to almost clear in one application typically. They are well worth $10.
Note - A power drill is required to use this particular set.