When she agreed to join the Souter Stormers, Grace Brett had no idea that she would become a sensation, the unwitting public face of the Yarn Bombing movement surprising residents of towns and cities around the world. Brett, knitting for most of her 104 years, has more experience than most. Together with her group of "yarnstorming" accomplices, earlier this month they attacked their town by "covering everything from benches to telephone booths" with their creations. They also targeted 48 landmarks in towns across southeastern Scotland. And from one day to the next this great-grandmother became the Yarn Bomber of the year, her photo with her hands busy knitting the next weapons zipping around the world. You may have seen tree trunks wearing socks, bicycle racks in knitted leotards or streetlight posts wearing colorful scarves. Think of it as "knitted graffiti," appearing unannounced in parks, streets, and public monuments in countless countries. No place seems safe from their assault: old buses, entire bridges, fences, cars, and statues are among the items that can suddenly appear covered by colorful decorations knitted or crocheted by any of hundreds of mostly-retirement-aged women. Yarn bombing, also known as yarn storming or guerrilla knitting, can be defined as 'the art of enhancing a public place or object with graffiti knitting.' In fact, many of the so-called "surprise attacks" are conducted after permits have been granted by local authorities.