Thank you so much for the ideas!
You're right, I'm not sure if the crayon will come off or not. I may have to look for those wax pencils while at Staples tomorrow - and attach with ribbon. Since I was going to have it spiral bound at staples (don't have my own rubicoil), then I do have somewhere to attach a pencil/pen (that has some sort of hook - like an RSVP).
As a side note, I had to redo the all the games to fit nicely on a 6x6 page, along with room for embellishment. So, I attached the updated file here. And, cause I have multiple kids (whom I'm making books for, too), I changed the BINGO card (only) for multiple printing. The ideas are limitless. The games I decided upon where suggestions from my 10yr old and 8yr old.
I'll be sure to post pics of the final product when done.
thank you so much for all your help!
~Jasa