Replying to What can I make to represent slavery in anglo saxon england

I need to have 3 things to describe the social structure of anglo saxon england for my english class. I have a crown to describe the king and nobility or whatever and I have a cowtag to explain what wergild is, but I can't think of something non offensive to the 5 or 6 black people in my class to describe the slave class.

Keep in mind I have a full set of wolf figurines if someone can tie that into this(its about beowulf).