Wait wait wait... are you saying you don't have any commemorative coins in the USA?! Holy shit I never realised! We have special coins all the time in Europe. My kids absolutely love when they find a special 2€ coin with some cool engraving on it.
How sad! You could have so many, too! By default each country in the Euro zone has its own heads, while tails are always the same. Easy peasy!
No we do have commemorative $1 coins, Sacagawea had one and they're fairly common change from vending machines. There's an older Susan B Anthony. Harriet Tubman had one but I've never seen it.
There was a set of quarters where the back was related to each state.