One idea could be to put students in pairs. Each student in the pair has a different picture. They describe to their partner what they see and the other person draws what is being described. Obviously pictures contain items such as some books, a few letters, etc.
It's not easy to be more specific as I don't know what you're doing at the start of your lesson. Would you like to describe this to me?
You could also take a look at my reply of May 5th 2004 regarding a similar language area.