Heo Đất Mê Cung Giữ Tiền Cực Chắc

This maze piggy bank is a learning project, it should accept almost every coin you could imagine and the majority of banknotes. 

Dimensions - the top opening is 50x10mm, the overall height is 138mm, inner diameter is about 85mm.

On the bottom you can find cutouts for fingers, without them, it should be pretty tricky to unscrew the textured cap.

Disclaimer: It should be obvious, but I would like to highlight that this is just a toy and it's not designed to secure your savings :)