[Java Junky]

I don't know how practical it would be to fit to a large surface without it bein' specifically made for it, but on the bikes we use a clear, protective film that can be adhered right to the paint. Put it on, n' unless you really look, you don't even know it's there.
The garage'z cold n' I'm sittin' here in my skivvies, so the exact info will godda be forthcomin', but, I'm fairly certain that it's a 3M product.
But I've had it on my '99 since new, cut 3 pieces to better wrap aroun' the extreme curves'a the back'a the tank n' the same 3 pieces r' still in place. I treat 'em like the rest'a the bike's surfaces n' they get washed n' waxed (At rather extended intervals) but, still, when most folks look additt, they don't even know it's there.
It does eliminate the chance of abrasion from dirt, findin' it's way behind a bra, bein' rubbed into the paint. I know for a fact that it's readily able to be peeled off without any indication that it was ever there. You might wanna jus' clean up the area it was on n' wax it when you're ready to go without.
I suspect that after prolonged use, even though it's clear, there may be telltale color change in the areas where it was applied, but, after what? Almost 8 years, I haven't noticed any difference in color on my '99.
Like I said, I don't know if they have anything big enough to do a Stewie nose, but it might be worth checkin' out.
Be well.
Java