marshmallow challenge

In uni we had to do the 'marshmallow challenge'. It is used on team building days. You get 20 pieces of spaghetti, a roll of tape, a piece of string and a marshmallow, you have to build the highest tower you can and the marshmallow must be on the top. We were against an engineer in the other team so we thought we'd lose.
Halfway through our lecturer came in and said if we got that to freely stand we'd have done a good job....and we did! It worked and we won! Shortly after this pic tho it started falling down!
As you can see by Helen's face in the pic, it was a surprise it worked!