The motion itself...

The swing motion itself when drawn hand to paper with your eyes closed is like a wave except tighter not loose. Bought the book Slash: Paper under the knife http://www.amazon.com/Slash-Paper-David-Revere-McFadden/dp/8874395299 So have been looking a lot into paper art and cutting etc. Paul Hayes http://theunobserved.com/art/paul_hayes/ is a paper artist and his work reminds me of the swing movement and motion. It looks almost like a school of fish but the outer curve of black paper shows the whole movement, that's what reminds me of the swing moving.