I have a lovely set of Victory skids across my undercarriage but a warn semihide front bumper. the skids leave a few inches of gap between themselves and the bumper, and while nothing super terrible is left exposed, it does leave a place where I could get hungup or things could get tossed into the radiator. I cracked together a quick sheetmetal design in fusion 360 and sent it off to my local metalsupermarkets where they popped out a 1/4 thick piece of 5052 for me for $75. Fills the gap nicely, I just need to paint it. This will mount either onto the bottom of a warn bumper using the winch bolts or inbetween the victory skid and the frame mount using the skid bolts.
I've attached the mechanical drawing (sorry I'm not a designer but if you have any pointers on how to make the drawing more "standard", let me know!)
enjoy!