Find the source and a documentation here:
Discussion
this may show my ignorance but fuck it why not. if I build one and use it as a piggy bank, YAY SATs. then open it and start all over with the same coins.
thoughts?
Well you would be selling satoshis to yourself, essentially just sending them from one wallet to another. But you could provide it for your family or friends so they can swap their change for some satoshis.

