Rice-Filled Heating Pads... We use a less cute version of this for all sorts of ailments. Leg cramps, upset tummys, etc. If I were crafty I'd make these... instead I fill a tube sock with rice and heat it in the microwave. If anyone wants to whip up a few of these, I'll pay you!
PDF Sewing Pattern - Picnic Pouch - Reusable, Wipeable, and Washable