My niece and I went to a local art exhibit - the art work was all around the city. This was one of the pieces. It was just something fun :)
And yes, it's a ball of yarn on a tree trunk, lol. There was lots of multi-colour yarn strung about, it was kinda cool and it must have taken them quite some time to set it up! It was actually kinda pretty. Click on the photo for a close-up look.