If I only had one hive, I might set it out for the bees, but with a number of hives (I have 8), it's an invitation to start a robbing frenzy in the apiary and I would put the wax under the hive cover before simply setting it out in the yard.
Sometimes when I have done crush and strain and have drips on the cardboard that I put on the floor and under the supers, I set the cardboard in front of my house on the sidewalk - it's away from the beeyard and is first come, first served, but doesn't then inspire robbing in the beeyard.
Linda T in Atlanta