I believe for the wedding, only a p-back would be on the camera... No changing between 120s & p-backs.
I just want something "Artsy".
Not sure a little instant polaroid camera would be congruent with "Artsy". Some of this is PERCEIVED value of using a sb67 or rx67.
Alastair - I love the idea of the cut out and matting!! Thats what i am talking about - artsy/classy/thoughtful