Micro-engrave artwork onto the bills, and drum up publicity. https://www.changechecker.org/2016/12/07/look-out-for-these-5-notes-worth-20000-in-circulation/ ht

Micro-engrave artwork onto the bills, and drum up publicity. https://www.changechecker.org/2016/12/07/look-out-for-these-5-notes-worth-20000-in-circulation/ https://www.changechecker.org/2016/12/07/look-out-for-these-...