I have 6 sets of this stuff for sale for only $20. This is the same material that Grill Craft uses to make their $200 grills. The only difference is that you're going to have to figure out how you want to mount it to your car yourself. It is aluminum so it will not rust. Also it comes in standard silver. You can just buy some all surface enamel from Canadian Tire and paint it whatever color you want if you dont want the silver color.
Each set comes with a 4 foot long by 1 foot tall piece of raised 1/2" Expanded Aluminum. Diamond shaped like in the picture. Also you will get a 1 foot long by 4 foot tall piece as well for any extra misc. places you might need it such as fog light spots etc. This is COST. I am selling it for what i bought it for because i dont need all the extra pieces. It comes pre cut and everything. Send me a PM with your phone# if you want one. I'm going to try and get rid of everything quickly so dont miss out.
EDIT: This is NOT the cheap gutter guard crap or the crap you buy at Home Depot that's flimsy like paper.