With all the great, new tools for editing paths, why not implement a mini-golf course (aka putt-putt)? Where I'm from, a lot of smaller amusement parks have miniature golf as an attraction. In addition, mini-golf courses are a great way to showcase theming and props, which seems to be a focus for improvement in PC2. Water features are often integrated into mini-golf courses, which is something you can really play with now. The scaling tool would be put to great use making the miniature scenery commonplace in mini-golf. You don't have to simulate guest games and ball physics, just have them animate and move through the courses... although I wouldn't complain if I were able to play it as a mini-golf mini-game in peoples' parks. 
