What Made This a Challenge?
When they added an extra large piece of cardboard to the bottom they would work!
Did We Deliver?
Below you can see two of my favorite photos. In the top photo, the team made a tube as their carrier and attached it to a small piece of cardboard.
When they dropped it the carrier would bounce and flip over. Then they added a larger piece of cardboard, but they were out of tape. They ran a straw through the tube and used rubber bands to hold the bottom cardboard in place. It worked perfectly.
Peek inside and you can see the marshmallows.