I like using flour sack towels in the kitchen. Imagine my delight when I found a set of (never washed) hand-colored towels at the local St. Vincent dePaul.
They have a "Holly Hobbie" look to them, and each one has a cat in the design. They are colored with Sharpie markers.
My favorite is this one. Love the kitty in the stroller.
To set the color, I put them in the dryer on high for about 15 minutes before washing.