I am in the middle of making a home made grill out of steel shaker screen i bought at home depot, pulled out the stock grill section to cut it to size, then a couple cans of plasti-dip to coat it. If the Plasti-dip ends up not holding up to the heat of the light, i'll just peel it off and coat...
Here is where i got mine, with the blue backlight to match the rest of my factory interior lighting:
Push switch 907B 12volt Toyota OEM Replacement LED LIGHT BAR | eBay