We worked out a deal with the local goofey golf place for $4 per person. We charged $5 for kids and free for leaders. It worked out just about right.
We had a small club at the end. This included a contest for best-dressed and lowest score, though you could probably have lots of other things like that too. Maybe a final putt off at the end.
Here is the scorecard with some fun tweaks on the how to play. Enjoy!