If you are going to leverage familiarity you better make sure your source is the right one. From that perspective it would be good, for instance, to use some kind of coin or circle as a backdrop. That way it will be clear to a lot of people that this is a currency.
because of course a circle is a currency right? - Like that huge retarded
B is a currency is it? , you know the man on the street wouldn't have a clue, you show them that B they are going to start thinking Rumpa Room or PlaySchool.