How do I prevent damage to the AC Condenser
 

Did an oil change today on my '06 Sonata, and noticed lots of minor damage
to the AC condenser from pebbles, etc. At this point, it's just bent fins,
and no real damage to the actual horizontal refrigerant carrying tubes, but
there are a few small dents there too. The part behind the opening that's
about a foot above the road shows the worst of it. This car is driven on
real roads, not dirt or gravel roads. Is there something ready made out
there (screen, etc.) that would go behind the openings in the from of the
car to stop or reduce the velocity of the pebbles? I'd rather put something
in that's designed for it, than making something out of screen, etc.