I am working on a Harley T-shirt quilt for a customer now. I cut out the design from the t-shirt which has fusible interfacing on the back. They are sewn together with Harley fabric as sashing. I have a Harley motorcycle quilting pattern that I will use to quilt it on the long-arm. I have several other ideas that I used to make NFL team quilts that could be used for a Harley quilt. Hope this helps. I will be glad to help in any way I can. You can find examples of my work on
www.addictedquilter.com and my Addicted Quilter Facebook page.