A great way to consolidate learning for your class, is to play a board game, or have them make something. And I have found that an even better way is to have them make a board game. They can do this in small groups and then swap board games to play.
It can be a slightly long and involved process, so to take some of the time out of it and enable your students to concentrate on the language, by giving them a blank board game. All they have to do is decide on what goes in each square and the special squares (go back, go forwards or miss a turn).