Virtual Training Exercises for Green Belt and Black Belt Training

When i went through my GB and BB training long ago, I had many ah-ha moments completing the hands on activities built into the class.  Can anyone suggest good virtual exercises?  One of the big ah-ha ones is the airplane exercise, and the catapult experiment that took you through all aspects of the blackbelt process continually building on itself until you built a repeatable process.  Big or small (icebreakers), any suggestions would be helpful!