Photo by woodleywonderworks
When I was growing up, I loved playing with Legos. I was a pretty messy kid, and I would have Legos strewn all across my bedroom floor (among plenty of other throwaway toys). I'd put together blocks in a very haphazard way, creating these interesting shapes and spans that twisted and turned in every which way.
No matter how interesting the sculptures that you can make with Legos, there isn't anything that great about an individual Lego. They're usually square with some pegs at the top. More often than not, they're only one color. You can't really make anything out of a single Lego besides, well, a single Lego. It's only when you get a bunch of Legos together that you can build anything interesting.

