Rice heating bag and removable cover (and all from scraps!)
EASY No-Sew Microwavable Rice Heating Pad – Unsophisticook
Large Microwave Heating Pad Back Body, Flax Big Heat Pack Rice Bag Lrg | eBay
DIY Rice Heat Packs - Organized 31
Microwave Rice Heating Pads, Hot or Cold Neck Wrap & Large Rice Bag, Relaxation Set - Microwave Heat Pads, Hot Cold Packs, Microwavable Heating Bags from Ferapeutic providing Hot Cold Comfort
Large Microwave Heat Pad, Rice Bag Heating Pad, Heat Cold Pack - Microwave Heat Pads, Hot Cold Packs, Microwavable Heating Bags from Ferapeutic providing Hot Cold Comfort
DIY Rice Sack Heating Pads - Bev Cooks
Amazon.com: KOYA Naturals Soft Velvet Rice Microwave Heating Pad - Microwavable Moist Heat Bag - for Neck, Muscles, Joints, Stomach Pain, Menstrual Cramps (Ultramarine) : Health & Household