Painting seal off?

[.Kevin.]

Alright so I bought some vht-night shades (tinting my real tail lights)

So I have

Sand Paper
Masking Tape
Tail tinting spray
Clear spray paint (for after the tint)


Now the thing is I need something to keep the paint off the body so I bought gift wrapping tissue paper, but I fear the paint will go through it so I needed something else to seal off I was gonna get poster paper but it is way too thick and not flexible for shaping around.

Any tips are appreciated or some sort of paper/material to use as a cover.