36. Mechanical piggy banks
Years ago, piglets were far more creative than they are today. Children can place a penny in a coin-bank mechanism. So they are both like a toy and an all-in-one bank. Today, they are highly collectible.
When you search for mechanical banks on eBay, you can find some for just $ 20, but others for more than $ 5,000. This relates to the rarity, the subject, the condition, and the company that created the bank.
