Three Years Old Boy/Girl Birthday Gift Idea - I'm 3 Superstar Kids T-Shirt This shirt will make an exciting gift for a 3 year old boy or girl. Happy 3rd birthday gift ideas. A cute present for a third birthday celebration. This 3 years old cool toddler t-shirt is a wonderful gift for your three year old son, daughter. OUTSTANDING FABRIC QUALITY! SUPER FAST SHIPPING! 100% MONEY BACK GUARANTEE. For sizing REFER TO THE TEESTARS SIZE CHART on the left