Steve,
hello my name is Bob and I will be in atlanta this year. I won't be entering anything, just going to enjoy the show and buy as much stuff as the wife will allow. I would not bring anything like glue or paint on the plane. with all the new security I think I would only bring built up kits and try to pack them in a manner that will be easy for security to look at to try to reduce any broken parts. If you need anything (paint-glue) or anything that may cause you airport problems e-mail me and I will try to bring whatever you need as I will be driving in from Knoxville. I'm not hard to find in a crowd 6'1" long haired tattoo coverd freak. we will see you there have a safe trip. just let me know if I can help.