I have made these before. I use the long men's socks. Two to be exact. One I fill with rice, knot it at the end and slip it into the other one, knot in first. Now it won't get too hot to burn you. You can also slip the outer sock off to wash it, and if you feel your rice has been in it long enough, you can untie the knot and change the rice. Never have had a problem with mice. Works great and always clean.