One of the most challenging parts of having a theme-heavy Bar or Bat Mitzvah is keeping some element of surprise when the big weekend arrives. Instead of having a super-theme-specific Invitation Suite, try going rich on color and pattern and only hinting at your theme on paper while saving the richest details for the party itself. Guests will be super impressed by your brilliance AND your self-control! (Seriously, though...just TRY and keep that theme a secret...we dare you! ;)