The Story Of Your Name: Sit with a small group of people and share with them the origin or significance of your name - first, middle or last, or any combination of the three. I like to add that if there is no "historical" connection to a name share a story from the past related to the name.
Longest Line: Simply put, "using only the resources currently available to the members of each small group (I create groups of 6 to 8 people), construct the longest continuous line from one location towards another." As Jim says, this activity "encourages problem solving, resource management, and team commitment." (In some cases I have actually had to limit the "commitment" in order to keep people appropriately clothed!!)