Batting for mug rugs?
What is the best batting to use for mug rugs? I have some Warm and Natural, as well as some polyester (lost the label...not sure exactly what it is!) I looked for insulated batting yesterday but couldn't find any, so I figured I'd just use what I have. The Warm and Natural seems pretty thin for a mug rug/heat protection. Do I double the W&N, or put in some old towels, or what would be best?
Thanks!