Just a little experiment I wanted to try out since I can't find a black grill anywhere. I'll probably redo it tomorrow, I think I can get it a little better
3D Flexible Carbon Fiber Vinyl (not sure if I can post the link where I bought it)
I bought a little extra 'cuz I knew it would take a couple tries.
The hard part
A little heat and the stuff stretches to get the wrinkles out. Sounds easy but it was a pain.