If you can find fabric that is close to the color, you could just applique patches over it....I have done this with a couple of quilts and it worked out fine. I just turned the edges of the patch under and stitched down by hand with blanket stitch. I may actually have used my machine for the stitching if I could have maneuvered the quilt enough...I really can't remember. You could also make a coordinating decorative applique something and stitch it down to add interest. If you have an embroidery machine, you could even embroider a design for the patch....be creative....it will work....