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A piggy bank whose frown gradually changes into a smile when money accumulates in it

Image credit: 3D Animation Production Company from Pixabay

Shireesh Apte
Shireesh Apte May 26, 2022
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When money accumulates in a piggy bank, its frown gradually changes into a smile.
To motivate children to save money
How it works
As the weight of the coins in the pig increases, a transducer channels a visible dark fluid into more concave shapes, thereby giving the appearance that the pig transitions from a frown to a smile or grins wider as more as more money is put into it.
Creative contributions


Spook Louw
Spook Louw Jun 07, 2022
l love this idea, I could imagine multiple variations of the same concept. It could be an entire series of products.
  • A character whose belly comically swells as money is accumulated.
  • A character stuck in a well or a pit of some sort and looks to climb out gradually as the weight of the money saved gradually weighs down a counterweight that pulls it up.
  • A piggybank that gradually reveals a secret or a code as you save (perhaps reaching the goal amount unlocks a reward compartment that parents can fill with rewards of their choosing. I imagine parents telling children that they need to save up half of the money for something they want, and when they reach the desired amount they gain access to the other half, given by their parents)
I'm sure there are more creative designs we can come up with to incentivize children to save money. Perhaps this could make a cool session.
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