I've made 8 T-Shirt quilts over the past 10 years or so. They have gone thru years in a guy's room at college (the ultiimate test IMO) and have withstood the 'heat'. I use a gold grid fusible that I get at Hobby Lobby. To me the hardest part is graphing the design and ironing the fusible onto the shirts. The shirts get fused, cut to size and then they are treated like any other quilt block with sashings and/or cornerstones, quilting. I have a long arm and do my own quilting - usually go around the logos but have gone thru them as well. There are specific steps that I follow when making a t-shirt quilt and fairly standard block sizes that I use for most of them. The hardest one took me 12 hours just for graphing because of all the sizes of shirts given to me and all the small logos used. You can see some of mine in my blog, www.irishlakequilter.blogspot.com - a very outdated blog at that - but it does have some of my t-shirt quilts on it.