I have mixed flannel with cotton, Minky with cotton, small wale corduroy with cotton on the front and a flannel backing. I washed and soaked the corduroy in vinegar overnight to soften it. Used it as the sashing and border. The quilt turned out great. Perfect for a boy.
A friend of mine made a dog quilt (the quilt was in the shape of a dog, big). The quilt was made out of squares of flannel, fleece, and cotton, cut into the dog shape, then ragged. Turned out cute.