Some of the materials that the students were able to use included 2 paper cups, 2 pieces of cardboard, a straw, an elastic band, tinfoil and a popsicle stick.
Their towers were very unique:
Some got a little distracted and started "decorating" their towers. We had gardens, draw-bridges and guards. I quickly roped them back in and explained that we were trying to make the tallest tower, not the fanciest one!
I wish I could share the pictures I have of the students. Their faces are priceless! I caught some photos of towers as they were falling. Luckily, there were no tears!