I design this articulate piggy bank for both note and coins.
The design was to make an one way piggy bank for self control which require to brake it when you needs to take the money out. However you can still use it as a normal piggy bank without fixing the lid to the body.
As asembly is very simple, only require some super glue. Make sure that they align to the bottem, ie put them on a flat surface but make sure don't put on too much glue or it will spill and glue on the table, don't ask how I learn this :( . Glueing the eyes and arms should be really straigh forward and simple.
https://www.instagram.com/reel/C7oeb3zvnUh/?igsh=c2tlMzI1bXZncjhi