The porkiest plastic pigs could ingest in excess of 1,000 NT $ 1 coins. Once full, most children couldn't bring themselves to break open their piggy banks, preferring rather to keep them as knickknacks, thus creating a steadily worsening dearth of coinage.
據說最大的塑膠豬，可吃進千餘枚一元硬幣，而且多數的兒童在撲滿存滿硬幣之後，還捨不得將豬隻「宰殺」，寧願留在家中做為擺飾，因此造成市面上流通的硬幣越來越少。