PRP Design students recently competed in an in-class team building exercise called the marshmallow challenge. This was serious business. After all, a giant bag of skittles were at stake! It was a fun and instructive design exercise that encourages teams to experience simple, but profound lessons in collaboration, innovation and creativity. The task is simple: teams have 18 minutes to build the tallest free standing structure out of spaghetti, one yard of tape, one yard of string, and one marshmallow, which must be placed on top. Surprises emerge with every team. Who tends to do the worst? Who tends to do the best? Why? What improves performance? What kills it?