We would leave our hog toy up right with 200-250 pounds of corn in it... This way we could see from a distance if they had hit it...
i have some 30 gallon drum hog toys and stand them on end. Problem is the hogs are almost 100 percent nocturnal. Have a couple 8" pipe hog toys with small holes that are chained to stakes. We do catch a hog tossing them around once in awhile in early morning.