I am thinking of having the kids collect autographs on something other than an autograph book. I have a few questions for those who have tried this: 1. Was it difficult to carry the t-shirt, pillowcase, etc. through the parks? 2. Was it difficult for characters to sign the t-shirt, pillowcase, etc.? 3. What type of writing instrument did you use? (regular sharpie, fabric pen?) 4. Do you have any suggestions for someone trying this for the first time?