Each of my knives is packed in a padded zipper pouch. For local shows, the pouches go into a Zero Halliburton aluminum case with foam padding in it. For shows requiring air travel, the aluminum case goes inside a much larger wheeled suitcase that also carries my clothes and other needs, and I carry a briefcase with all my other show essential in it.

Make sure your insurance is up to date if you are flying, and don't put any indication of the contents on your luggage.