If your looking at this video your finding out that plasti dip doesn't always just peel off especially if it's thin it will be very hard to get off. Paint thinner will be too strong on the plastic and will cloud the plastic and ruin it so you cannot use that. brake cleaner will also be too harsh.
But if you take a can of plasti dip and spray the lights rub with paper towel it will start to come off. Once it's almost removed it will leave a thin sticky film take WD-40 with a clean paper towel or microfiber towel and polish the lights up till it's all gone.