You will need a stick such as an old sorting stick like I have, or just a thick wooden stick, a jug about the same size as mine in the picture, a piece of tarp roughly 2 foot by 3 foot, a small amount of BBs, 3 zip ties, and a knife.
First, take a small handful of BBs and put them in the jug and then tighten the lid, this is all that is needed for this tool.
Next, take the tarp and roll it at the top a few times and take the knife and carefully poke a hole at top middle and bottom as is shows in the picture.
After that, put a zip tie through each hole as shown in the pictures and tighten them.
Once the zip ties are tightened, use the knife to cut off the ends of the zip ties as it is shown in the picture.
Step 5: Final Product
Shaking the jug produces a loud sounds that will make the pigs move away from. Waving the flag or just using the side to push towards pigs will also make them move away.