I often though it would be interesting to try to do a "round robin" style photonovel....
Say, we each agree to pick one character who will be the main protagonist (using a figure that everyone has, say VOTC Han Solo, or Pilot Obi Wan and Evo. Anakin).
One person starts out the story, using all of their resources (customs, dioramas, photoshop, etc.) then another person picks up the story.
This would give everyone a chance to showcase their custom creations in their specific chapters. (though, sadly, those characters obviously wouldn't be able to carry through in the entire story...)