I think ultimately what you put into the clan tent is based on you. But there are a few rules of thumb you might want to consider. Especially if you're doing the clan tent alone. I know when I do my first clan tent, hopefully in October, that unless someone volunteers to help me I'm going to be setting it up and running it alone.

As a result everything is going to be packed in one box. If it doesn't fit one box, it's too much. But that's me on a personal level. The exception being the banner. I suggest items that have weight to them or to bring weights just in case. That way in the event that you have high wind, your tent doesn't blow away.

Items that a little water won't harm is also something you might want to consider. Weapons. They are popular. A friend of mine has a William Wallace replica sword and it attracts a great deal of attention at his tent. Especially from the kids. Because it's not sharp it's appropriate for the kids to touch, get a picture of them next to it, etc..

Books, Geneology, Clan Stories and History. All of that is great. A map of Scotland.. you can do it if you want but the last Highland games I went to, I counted no less than 8 maps of Scotland.