Giant book

This is the picture a colleague drew of what the giant book could possibly look like. Has anyone had any more ideas on what could be done regarding the giant book costume?

Big book costume

I haven't had any luck so far in finding a "big book" costume - I have tried various costume hire places.

A colleague suggested that we can make a book in a "wing style" by using a large piece of heavy cardboard, which will attach to the persons back. This sounds like a pretty good idea - what does everyone think? I will draw it, and try and post what I mean soon.