well I couldn't find Pork Rinds.. but I found some about where they come from... Little Itty Bitty Piggies... LMAO

A farmer buys several pigs, hoping to breed them for ham, bacon, etc... After several weeks, he notices that none of the pigs are getting pregnant and calls a vet for help. The vet tells the farmer that he should try artificial insemination. The farmer doesn't have the slightest idea what this means but, not wanting to display his ignorance, only asks the vet how he will know when the pigs are pregnant. The vet tells him that they will stop standing around and will, instead, lay down and wallow in the mud when they are pregnant.
The farmer hangs up and gives it some thought. He comes to the conclusion that artificial insemination means he has to impregnate the pigs. So, he loads the pigs into his truck, drives them out into the woods, has sex with them all, brings them back and goes to bed.
Next morning, he wakes and looks out at the pigs. Seeing that they are all still standing around, he concludes that the first try didn't take, and loads them in the truck again. He drives them out to the woods, bangs each pig twice for good measure, brings them back and goes to bed.
Next morning, he wakes to find the pigs still just standing around. One more try, he tells himself, and proceeds to load them up and drive them out to the woods. He spends all day shagging the pigs and, upon returning home, falls listlessly into bed.
The next morning, he cannot even raise himself from the bed to look at the pigs. He asks his wife to look out and tell him if the pigs are laying in the mud.
"No," she says, "they're all in the truck and one of them's honking the horn."

I'll look for more...

Here's a good one:

Chores on the Farm:
A young boy comes down to breakfast one morning. His mother asks, "Have you done your chores yet?" "No," replies the boy, "but could I have breakfast first?"
"You know the rules, go outside and clean the chicken coop, milk the cow and feed the pigs."
The boy goes down to the chicken coop and lazily cleans it. When he is finished he he kicks a chicken. Next, we walks to the barn and takes out the old milking cow. After milking her thoroughly, he kicks her. Then the boy gets the food and feeds the pigs. Once he is done he kicks a pig.
Finally, the boy runs back to his house, very hungry. His mother gives him a plate with nothing on it but an apple. Disappointed, the boy says, "Where's my eggs, my milk and my sausage?"
"Well," says his mother, "I saw you kick a chicken, so now you don't get eggs. I saw you kick the cow, so now you don't get milk. I saw you kick the pig, so now you don't get any sausage."
Just then, the boy's father walks in and kicks the cat. The boy says to his mother, "Should I tell him now, or do you want to?"