I recently completed a custom t-shirt through my Etsy store. I wasn't sure how well it would turn out, but it came out great.
I hadn't done a shirt this size before (I usually do children's sizes, and this was an adult 5XL), so I was worried that I wasn't using enough dye, but apparently I did. I used my Silhouette to cut out the freezer paper stencils and used gold fabric paint.
Not bad, huh?