Personalized Santa Hat Cello Youth T-Shirt. A cello wearing a Santa hat is a funny musical instrument gift tee for string musicians, teachers and students at birthdays, Christmas and the winter holidays. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.