As you know I like to post resources for family smachot. Fun in Jerusalem just posted a list of fun places to have a Bar/Bat Mitzvah in Jerusalem. These are not your typical places so its worthwhile to take a look and see if any would be useful for your family. Pictures included. In addition, the site has a directory with other services that are useful for Bar/Bat mitzvah preparation in Jerusalem.
Disclosure: As I have mentioned in the past, I do web development/backend work for FIJ.