You could put Reagan on it ...
Better idea ... put him on a penny and bump everyone else up a notch. (Lincoln to nickle, Jefferson to dime, etc).
Then downsize it.
kidding aside ...
Be radical and
Replace the nickle with a three-pence ...
Replace quarter & half dollar with a 30 cent coin, have a $3 bill instead of $5, $30 instead of $50, etc
Now you have some new currency to face. And name.
Civil rights (Parks, King), womens rights (sufferagettes), indian rights, migrant workers, irish immigrants and unions ...
Edited by RAZD, : No reason given.