Yarn Tree

From my Aunt-in-Law (not sure where she acquired it, or otherwise how to attribute - but it's neat.)

Edited to add:

All right, so attribution is not very difficult with a little bit of Google. The crocheted tree sweater is by Carol Hummel, an artist who does a lot of work with both yarn and trees whose art can be seen here - http://www.carolhummel.com/. There are even trees wearing unmentionables.