Personalized Tuba White Text Shamrock Women's Plus Size V-Neck. A shamrock made from the word tuba and small shamrocks is a unique sousaphone gift design for low brass musicians and music students and teachers on St. Patrick's Day and at Celtic festivals. So comfortable you'll want one in every color! These versatile v-neck t-shirts are great to wear to the office or at a weekend BBQ with friends. Available in a wide range of colors to compliment any wardrobe, these shirts are softly shaped to complement a plus sized woman's curves.