Are you getting married? Is beer a big part of your life? Then consider making beer cap maps part of your big day. How? Here are a few ideas:
Combine a state or US map with some blank caps and a Sharpie pen for an amazing guest register that you will be able to hang on your wall and look at each day.
Give your groomsmen their favorite state maps with a customized cap or two already installed.
Use mini maps or bottle opener coasters as favors for the rest of your guests.