Oktoberfest is covered in decorations so adding anything more is hard to do. This free MOD will create a Biergarten feel to the upper playfield and bring Otto's bar into the new code update! You don't have to remove anything and it will cost practically nothing. I am a modeler so working this wasn't a problem but may be tedious to others. Surprisingly it didn't distract or block anything else on the playfield and feels like part of the game.
What you need:
Download the attached .pdf's and print them off double sided on the same piece of paper.
Double sided tape