The design of a coin bank with the metaphorical meaning of a black hole. In the capitalist world, the flow of money is unpredictable. We live by paying, but we don't know where the money flows. Like a black hole where you don't know where to go if you're sucked in.

When a coin is dropped into a coin bank, it rotates round and round along the curved side and is sucked into the hole.
In the way of putting coins, it gives you an opportunity to think about money again.

The key material of this coin bank is acrylic. The footer of the lower part is made of EVA foam for easy opening and closing.