That'd be a good idea. But this reminds me of something we did something a long time ago that was kind of similar.
There was a Rumor Mill Forum set up on poster board. (1 of 3 forums we had at the time) People could come up, and write a message on index cards or sticky-notes (i forget exactly), and post it on the forums.. and there was also a section for polaroid pics, if I remember correctly.
Oh! . Theres a pic: [
link]
Something tells me we'd need a slightly larger poster-board if we ever did this again...