Sew microwaveable heat packs from colorful fabric. What a cute and cozy gift! To make them you need the following supplies: Supplies for Microwavable Heating Pads 7-1/2″ x 40-1/2″ rectangle of cotton 7-1/2″ x 40-1/2″ rectangle of flannel thread measuring tape iron and ironing board scissors straight pins 9