In 2001, I stole a basic LEGO kit from my daughters. I discovered several different ways of making very stable rings and other curved objects from only rectangular LEGO bricks (here is the original page). Certain natural tilting angles between LEGO pieces define diameters of corresponding circles. The resulting low-complexity artworks are both simple (in terms of algorithmic complexity) and surprising to those who haven't seen them before. They reflect the formal theory of creativity and beauty, as well as that of curiosity.