Happy St. Fatty's Day Men's T-Shirt. Be Seen In Green This St. Patrick's Day! Here at GoneBlue we offer the biggest selection of fun St. Patrick's day t-shirt and novelties on the web! Choose from hundreds of Irish inspired St. Patrick's day designs for men and women. Whether you are looking for a new St. Patrick's day outfit or you are proud to be Irish 365 days a year. This shirt is sure to let every one know what your all about! Irish or not on St. Patrick's day everybody's Irish!