Any country coins for little boy (Horsham)

Hello 👋 my son Maximilian who is 7 is super keen to collect any currency coins ( old / new ) to learn countries and currencies of present and past . He absolutely loves it , so please if you have tucked away at the back of a drawer a few coins let me know he will be very happy ! Thanks in advance ( also this is not for resale , a genuine mini collector !)