An example of a collaborative construct from my own life experiences such as the one described by Vygotsky within Moghaddam's work would be my high school music band. In this band, each individual musician sounded okay, some were even great. But the sum of the individual's skills were blown out of the water by the music that all of the musicians could create together. Within instrumental music, the more parts that you have, the more levels of sound there is for listeners to enjoy.
Another example would be my high school roller coaster competition, where three of my classmates and I build a miniature roller coaster with a specific theme (Mario bros.) within an allocated time frame. Sure, any of us could have possibly built it on our own, but it would not have had the same level of detail and idea input or meet the specific time frame. But together, we did that and more, as we ranked high enough to compete for our school against other schools. The point I'm trying to make here is that as a group, we generated greater ideas for parts of our coaster, which is something that would have never happened had we all worked individually.