This is super cool. You will need fences,pig spawn eggs,a carrot and a block. First put a fence on the ground,then put 2 blocks right next to fence,then tap on the top of the block with pig spawn eggs. The last thing you need to do is to get a carrot and all of the pigs will make 1 and move around and the pigs will look at you.(if you go fast 1 of the pigs eyes will look long.) The end.