Well-being retreat staff t shirts

Our project is working with adults and children in learning about mental well-being and how to maintain a positive outlook within 'family'. I saw a shirt on a man walking by me and i cannot find it online anywhere so was looking at how i can get one made. The colour/t shirt itself can be the same or can just be black/grey/white/cream whichever is easiest, but the design size etc should really match. There are two clouds and a blue circle representing earth and the words around the outside say "but what if it goes right". I only need one as a prototype then will get back to you for more. I hope somebody will be able to pull this off! Thanks in advance.