Yarn Bombing in San Diego 2 comments Hillcrest Tree, 2011 Uncommissioned Piece San Diego, CA 2 Comments SB on March 22, 2012 at 5:58 pm How often do these get stolen? ishknits on March 22, 2012 at 10:52 pm Well, anyone can take a yarnbomb if they want to.. since they are in the public space. But usually what happens is that a city worker will take them down, within a month or so. Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email.