The pig shape comes from a pottery accident in medieval Europe
Piggy banks are shaped like pigs because of a mistake that stuck around for 500 years. In the 1400s and 1500s, European potters made small household containers from a cheap clay called pygg. People used these pygg jars to store coins and small valuables. The containers were simple, affordable, and common in kitchens across England, Germany, and the Netherlands.
When English speakers began calling these jars "pygg pots" or "pygg banks," the word sounded exactly like the animal. By the 1600s, potters started deliberately shaping the containers to look like actual pigs—turning a homophone into a visual pun. The pig shape caught on because it was memorable, charming, and easy to recognize. A pig-shaped container was more fun to look at than a plain jar, and children were more likely to drop coins into something that looked like an animal.
The name and shape reinforced each other so strongly that people forgot the original connection to the clay. By the time the word "pygg" disappeared from common use, the pig shape had become permanent. Potters in other countries copied the design, and the pig piggy bank spread across Europe and eventually to America.
Key Takeaways
- The original "pygg pots" were named after the type of clay used to make them, not the animal.
- English speakers heard "pygg" and thought it sounded like "pig," creating an accidental homophone.
- Potters capitalized on the wordplay by deliberately shaping containers to look like pigs starting in the 1600s.
- The pig design became so popular that it spread worldwide and the original clay name was completely forgotten.
- The pig shape persisted because it was visually appealing and encouraged children to save coins.
How the homophone created a lasting design
The shift from plain jar to pig-shaped container happened gradually. Early pygg pots were simple cylinders or rounded vessels with no animal features. Potters made them functional and cheap—the goal was to hold coins, not to win design awards. But once the sound similarity between "pygg" and "pig" became a joke among English speakers, potters saw an opportunity.
By the 1600s, some potters began adding pig features to their coin jars: a snout, ears, a curly tail, and four stubby legs. These early versions were crude compared to modern piggy banks, but they were unmistakably pigs. The design solved a practical problem too—a pig-shaped container was harder to forget about, which meant people were more likely to keep saving coins in it rather than spending them.
The pig shape also made the banks more durable in a strange way. A plain jar could be used for anything—storing buttons, holding kitchen utensils, or keeping spices. A pig-shaped bank had one clear purpose, so families kept it intact and passed it down. Plain jars got broken or repurposed; pig banks became keepsakes.
Why the pig design spread across Europe and beyond
Once English potters established the pig shape, German and Dutch potters copied it because it sold well. The design was simple enough to reproduce and distinctive enough to stand out in a market full of plain containers. By the 1700s, pig-shaped banks were common across Northern Europe.
The design worked especially well for children's savings. Parents bought pig banks for their kids because the shape was playful and the purpose was clear—you saved money by feeding coins to the pig. The anthropomorphic design (giving the pig human-like qualities) made saving feel like a game rather than a chore. A child was more likely to drop coins into a pig's slot than into a plain ceramic box.
When European immigrants brought their traditions to America in the 1800s and 1900s, they brought pig banks with them. American manufacturers began producing their own versions, and the pig shape became standard across the Atlantic. By the early 1900s, pig-shaped banks were so common that most people had no idea they were based on a pottery clay name from centuries earlier.
Modern piggy banks still follow the medieval design
Today's piggy banks—whether plastic, ceramic, or metal—still use the basic shape established in the 1600s. The design has barely changed in 400 years. Most piggy banks have a slot on the back or top for inserting coins, a removable plug on the bottom for retrieving them, and exaggerated pig features that make them instantly recognizable.
Manufacturers have experimented with variations: piggy banks shaped like other animals, cartoon characters, or abstract forms. But when someone says "piggy bank," most people still picture a pink ceramic pig with a coin slot. The original design was so successful that it became the template for all coin-saving containers, even though most people no longer remember why pigs were chosen in the first place.
The pig shape persists because it works. It's memorable, it's cute, and it signals its purpose immediately. A child who has never heard of medieval pottery clay will still understand that a pig-shaped container is for saving money. The design has outlasted the language that created it.
The connection between pigs and money in different cultures
Pigs have represented wealth and prosperity in European culture for centuries, which may have reinforced the piggy bank design once it was established. In farming societies, pigs were valuable livestock—owning pigs meant having food security and tradeable wealth. A pig was a living savings account that could be converted to money or meat when needed.
This cultural association with wealth and savings may have made the pig shape feel natural to people in the 1600s and beyond, even if they didn't consciously think about it. The shape wasn't just a pun; it also carried symbolic weight. Saving money in a pig-shaped container felt appropriate because pigs represented financial security.
In other cultures, different animals became symbols of savings. In Asia, cats and frogs appear in coin containers because they carry different cultural meanings. But in Europe and America, the pig remained dominant because the original homophone had already locked the design into place.
Why the original pygg clay name disappeared
The word "pygg" fell out of use by the 1700s as English pottery terminology changed. Potters stopped calling the clay by that name, and the general public never used it in the first place. Once the pig shape became standard, there was no reason to remember that the original containers were named after a type of clay.
Language naturally forgets connections that stop being useful. People didn't need to know the etymology of "piggy bank" to use one—they just needed to know it was a place to save coins. The pig shape was explanation enough. Over generations, the original meaning of "pygg" became completely obscure, known only to pottery historians and etymologists.
This is how many everyday objects lose their origins. The design persists, the name sticks around, but the reason for the connection gets buried in history. A piggy bank is a perfect example of how a random homophone, combined with clever marketing by potters, can create a design that lasts for centuries.
Frequently Asked Questions
When did potters start making pig-shaped banks instead of plain jars?
The transition happened gradually during the 1600s in England. Early pygg pots were plain, but as the homophone between "pygg" (the clay) and "pig" (the animal) became a recognized pun, potters began adding pig features. By the late 1600s, pig-shaped banks were common enough that plain pygg pots were becoming rare.
Did other countries use different animals for coin banks?
Yes. Asian potters created banks shaped like cats, frogs, and other animals that held cultural significance in their regions. But in Europe and America, the pig design became so dominant that it spread globally. Today, pig-shaped banks are recognized worldwide, even in cultures that never had the original "pygg" homophone.
Is the word "piggy bank" still connected to the original clay?
No. The connection was lost centuries ago. Modern English speakers use "piggy bank" simply because the shape is a pig, not because of any awareness that "pygg" was once a type of pottery clay. The homophone created the design, but the design outlived the language that inspired it.
Why do piggy banks have a slot on top and a plug on the bottom?
The slot on top makes it easy to insert coins, and the removable plug on the bottom lets you retrieve them. This design dates back to the original pygg pots, which had similar features. The slot encourages saving by making the act of depositing coins satisfying and visible, while the plug ensures you can actually access the money when you need it.
Are piggy banks still popular today?
Yes, though their purpose has changed. Modern piggy banks are often decorative or novelty items rather than serious savings tools. But the design remains recognizable and common, especially as gifts for children. The pig shape has become so iconic that it's used for banks shaped like other animals or characters—the pig design set the standard that all coin-saving containers follow.