bumper
I'm sure it is possible, but i think you'd struggle.
You'd have to cut a piece of mesh to the exact shape of the bumper, which is really difficult.
Plus the problem i had with mine was finding a bit of mesh large enough for an HGT bumper. The longest mesh i could find was 1 metre long which was about 10cm too short. I tried all of the car accessory shops and all of my local garden centres. In the end i had to buy 2 bits and lay them over each other, thats why the centre of the bumper looks a slightly brighter silver colour.
Actually i did find 1 place offering mesh to any size but it costs £150!!!
So yes i'm sure you could lay it over the top if you had the patience to cut it properly and join 2 pieces of mesh together.