Rainbow Custom T-Shirts, Make Your Own Tee, Multiple Colours & Styles! How to order ✨ ⭐️ Add your Personalisation. 1. Enter your “Text” 2. Enter your “Text Colour” 3. Enter your “Design” If you wish. E.g “Unicorn” ⭐️ Select your Colour T-Shirt ⭐️ Select your Size T-Shirt ⭐️ Upload a design have a certain design you would like for your T-Shirt in the Upload a file section