The kids did 4" tags cut out on the cricut one year.. they got the autographs and then I could add them to the pages when I got home..
I saw a few when I was out in June at the parks where the kids were carrying 8x8 spiral bound books... the one mom I saw had decked out each page for a character.. left a 4x6 space to place a photo and a 2x6 space underneath the photo or above to have signature.. what she noticed was that the characters were signing in the bigger space not the autograph space... So, she was going to redo the book when she got home...
I cut the 4" tags on the cricut w/ the george cart, zooballoo cart.. It was easier to carry around.. I cut numerous colors so the kids could decide on a color while we were in line..
I put the signed cards in a separate baggie so we wouldn't accidently sign the tag twice...
Each kid had a clipboard I decorated for the characters to have a hard surface to sign on.. after a while we went to 1 clipboard for the 3 kids and PJ would help the boys switch out tags so there was only one clipboard being toted around...