Just a thought here John. If you'd like, feel free to download (and print) any of the pictures I've taken. They're all in a 4 X 6 format, so printing that size is easy and straight-forward. I think most drug stores will print a 4 X 6 for around 10 - 15 cents a print.
My thought is that a nice white board with pictures might give visitors (to your booth) some idea of the different styles you have made and could lead to extra orders.
I'm fairly sure you can download the pictures just by going to my flickr account, then right-click on the picture(s) you'd like to download, select full size, and finally select download. I think I've taken at least one picture of every knife I've bought from you.