Forgive the bad photo, but here is a shirt I made with an SVG file found on the SCAL Forum. This is a belated Christmas gift for one of my co-workers, she's a big fan of Twilight like me.
I purchased the heat transfer vinyl from Ebay, it's not cheap and I was so scared to use it. But, this went on very easily even though I had to iron it a few times for some of those small pieces. In hindsight, I should have chosen a white shirt with black vinyl; overall, I am pleased with it and she was too.