Jean quilts are do-able but keep a couple of things in mind. The seams tend to be bulky so minimize the seams needed in the quilt top. It also helps to off-set the squares so that the seams don't all meet in the same spot. You can also do them in rag style with the seams exposed and frayed. The bigger it gets the heavier it gets, so sew 2 halves and then join them. There are some great examples on QB that you can find by using the search box.