Quilts for dogs?

Anyone have a good idea how to make a durable quilt for a much loved, but incredibly big, dog? I was thinking about making a quilt for my nephew for his 25th, og would love to make one for Lewis, his dog. There must be someway of making a sturdy quilt (without resorting to the ones with frayed edges and layers and layers of fabric)?



Look at him! Don't he deserve his own quilt? :)