Rainbow Stars Birthday Tee £14.00 Sublimation Tee Size: [Choose]4-5 years3-4 years2-3 years13-14 years1-2 years11- 12 years9-10 years7-8 years5-6 years Personalisation: Personalisation 0 characters left. Quantity: at £14.00 each Add To Basket 19 in stock. Celebrate that special day with a super bright and colourful rainbow birthday tshirt. These tshirts are printed using sublimation technology, which prints the designs into the fibres of the material, giving a lovely soft finish. Our Sublimation Tees are 65% Polyester 35% Cotton and are lovely and soft. This design has been created by us and is printed by us in our home studion in Wiltshire, UK.