I took this from kitty.cat
http://www.waygook.org/index.php/topic,54290.0.html ... amped it up and added a lesson plan - attached...
Students have to guess what the picture using target English phrases: "What is it?", "I think it is a...", etc.
You can tweak the scoring how you please. My students really got into it. They partnered up and their partner was on the other team. It was a little difficult to keep them using English, but, just keep reminding them.
Adjust as you please and let me know what worked/didn't work!!
Thanks y'all.