Got a link from Ticketek on this - this co. print any image you like on a white T shipped for $23 (cheaper for multiples). I have no affilation, ordered a T got it, good quality (Anvil brand).
They try to peddle a bunch of other stuff as you go through the process. I ended up with ten bucks worth of address labels I don’t want. Just take care not to tick any boxes along the way. Other than that it’s simple. I now have a Marina Del Ray and a Del Mar T