This was done some years ago for the 'artists passports' that used to be at FC and AC. Artists involved would create a stamp and document a passport holders book exclusive for that con and year.

I kinda miss doing them, even if they were a bit expensive.

I featured here a Tokay Gecko, a foot long nasty piece of reptile thats born pissed and will cheerfully rip your fingers off if given a chance. Tokays are cool lizards, have a distictive 'bark' when startled or annoyed, also make excellent living roach traps!