Right before Fall Break, we engineered, or built, bridges.  We were in groups of 2-3. We had limited supplies. Our supplies were a little more than 20 popsicle sticks, maybe 12 or 13 pipe cleaners, and about 33 q-tips.  We used candy bars to measure the weight that each bridge could support. The winning bridge held 54.9 ounces, or 3.43 pounds, which was 34 candy bars.