That's what I've done with some of my scraps and have them around the house. I drink a lot of ice water and it causes that condensation on the glass so these are perfect. I actually have a couple in my sewing room (away from my active table) in case I knock it over :shock:
Another way to use up scraps is candle mats (I call them candle quilts) but I also spray a bit of Scotchgard on them to make cleaning up the dripppings easier.