Topic: vocabulary, grammar, spelling.
Materials: strands of uncooked spaghetti
Time: 5 to 10 minutes.
Hand out strands of uncooked spaghetti to the students. They must break them up and form into words or entire sentences on their desk tops (or the floor). So for instance I say to the class, "He is my friend." Working as fast as they can, in groups, students write the sentence in spaghetti. The team that finishes writing the sentence first raise their hands, I check the sentence to make sure it is right and award that team a point.
It isn't a game you play every week and it requires some sweeping up afterwards.