On the 4th of March there was an update in 2011. That update was a new penguin style for that month. The theme of the new clothes in the catalogue was Spring wear, as the Winter months were passing and the temperature in the real world was getting warmer. This catalogue featured some new custom t-shirts amongst other new items. You can click the links at the bottom of the post to see more.
Want to see and learn more? Check out these pages about the topics mentioned above.