This week I made some hot & cold packs. They are easy, very cheap (or free if you have some scrap fabrics), and so nice! They are perfect for kids with boo-boos as they do not get too cold (like a bag of ice would), and they are nice for sore muscles as you can easily heat them up.
I used a basic handwarmer tutorial, but made my fabric strips longer. Check out the tutorial first to get an idea of how to start these: Here is the tutorial for how to make handwarmers.
Following the same ideas as in the handwarmer tutorial and just lengthen the amount of fabric you use. You can do any length you want. Fill your fabric pouch about 1/2-3/4 way full with brown rice (any rice should work, though). You don't want it too full as it will make it difficult to sew into sections. Once you have placed your rice in the pouch, sew it closed. Lay it flat to spread out the rice, and then split it in half. Sew through the middle. Fold each of the two sides in half again and sew through the middle of those. You will end up with 4 sections (or however many sections that you want, depending on length).
You can keep these in the freezer to use as cold packs. If you want to heat them up, place them in the microwave for 30 seconds. Be careful not to overheat! They get hot very quickly!
I really like these as you can make them in any shape or size. I'm thinking my kids might enjoy some heart shaped ice packs!