sudden catastrophic failure

It's getting close to the end of the semester - time when things can get a little too serious so I rushed through my 3rd year professional practice class today and we went out to catch the last of the sun and to undertake a wee design challenge. 3 teams of 4, one bag of marshmallows and one pack of bamboo skewers each team. 25 minutes to build the tallest freestanding tower.

This just after the deadline...