Every wonder what to do with those scratched discs that just should be thrown away, how about finding some means to hang them around your waterer. Just out of the reach of the horses. But close enough to reflect the light.
The Birds HATE IT! Now don't go making it look to cheezy but a couble on a piece of PVC and a chain will do the trick. No more poop in the water and keeps some them out of the grain.