Rarely will you have anything stolen from the tent. Ideas give are great. If you can, find out the history behind some of the names (septs or common first names) in your clan. Telling folks about the history of their name is always a great hook. Get a map of Scotland and mark on it your clan areas. If you can get some pictures of castles in your area that is always great too. My wife makes fans out of card stock and Popsicle sticks and prints the clan crest on them. Only cost a few cents each and it is something "clan" related to give away. Check the clan convener/commissioner group for more ideas.