I HIGHLY suggest guessing gifts as well.

My family does these. Wrap an item in several layers of wrapping paper. The item has to be out of it's packaging. Everyone takes turns guessing what the item might be and whoever gets it right can keep it. The "unwrapping" process of a single gift can be as much as 30 minutes of guessing and laughs. We allow for everyone to ask yes or no questions to narrow down the answer.