Lining underside of boot lid

[CJ]

Can anyone recommend a material for covering the underside of the boot lid from a cosmetic perspective? I soundproofed the lid with flash band and while its an effective vibration killer, I didn't do the neatest of jobs!
I was thinking of an under-bonnet soundproofing sheet but was unsure if it would fit snugly into the curved areas without requiring lots of cutting.

CJ