Only got text ones. A friend on mine went to get it done. Says they have a choice of fonts there (images too I believe). You can have them lay it out for you, review and they print it off there.
If you want an image (particularly a photo) you would probably either need a medium resolution file or a print out that is quite clear because what they do is a digital print and doesn't require the highest resolution.
Maybe call Mercato and ask for the number of the store so you can cross check with them? Don't remember the name, sorry.
In the basement at Mercato there is a Tshirt printing place. pretty sure the other malls have them too. But this one I know for sure. Customised onesies are about 75.
<em>edited by susandiaz on 21/04/2012</em>
can you not find a picture you like and take to one of the photo places - they print on tees
How much would I have to make the resolution for it to be clear?