#celstese

Create a digital version of the logo (vector is ideal) and bring it to a t-shirt printing place. They usually do vinyl-pressed shirts which look really nice.

If you want to do it yourself then I suggest screen printing. You can find beginner kits at craft and art stores. If you don’t really want to make it a hobby then you can pick up just a jar of screen printing ink and follow this fakie screen printing tutorial. 

If you don’t want to invest in a jar of screen printing ink then you can just use fabric paint. Create a stencil, secure it on your garment and then brush or sponge the paint on. Let it dry fully and give it an iron to set it in place. (If you can’t find fabric paint in the right color then you can mix acrylic paint with fabric medium. Acrylic paint on its own may wash out.) 

Another option, is iron on transfers. You print the mirrored design onto paper, cut it out, lay it on your garment and iron it into place.