My daughter was recently in a Lego Robotics Competition. The teacher/coach wanted the kids to have shirts that represented them as a team and as a school. To save money we took our school shirts and added iron on vinyl. Yup! It's amazing the stuff they make these days. I ordered it from http://www.expressionsvinyl.com/ to cut on my 12x12 Cricut mat and it worked great! Loved their how to videos and it arrived fairly quick. I'm already thinking up other ideas for this new found product. :)
Back of the shirt made with the iron on vinyl. Robot and flower pot along with a robot font!
Regular front of the school shirt (not from the vinyl.)