Set up a feeder: Set it to run about 30 minutes before sunset. This is to get the hogs on your clock. They will learn the late hog gets no corn and they may come in before dark.
Or: Make a big pig toy, fill it with corn and stake it down. The hogs will roll the toy around and toss it in the air. Do not drill too many hogs in the pig toy. You need two or three 1/2" holes, that's all.
This pig toy is made from 6" thick wall PVC pipe. One end cap is permanently attached: The other one can be knocked off with a hammer for filling with corn.
You can also make a giant pig toy using a plastic drum. Drill two or three 1/2" holes in it, put in a sack of corn, set the drum on end and toss some corn on the ground around it so the hogs get the picture. If the hogs have been there, the drum will be up ended and rolled away.