Collect a variety of candy bars with fun names. Put them in a basket or on a platter. As you pass the basket or platter have each group member use one of the candy bars to describe their week. For example I might choose the Almond Joy and say, "I have had a week full of joy."
(Candy ideas: Almond Joy, Big Hunk, Pay Day, Snickers, 3 Musketeers, Whatchamacallit, $100 Grand, Nutty Bar, Butterfingers, Mounds, Crunch, Dove)