Not long ago, I saw an idea on the web where a lady crocheted covers for DVD's and CD's. I don't know if she was using them as coasters, or hot pads. She was selling her crochet pattern. I seldom follow a pattern and I tend to play when I crochet. With crocheting, if I make a mistake, it can be ripped out easy enough and re-done. Crocheting goes much faster than knitting. They are similar to the old covers for asbestos trivets seen on our grandmother's tables.
Have a great week! Dawnie