Any parent will agree that kids will stay outside in the cold way past the point of their lips turning blue and their little hands and feet freezing, especially when it's snowing. In order to keep your little one's hands warm, make some reusable hand warmers that can be tucked comfortably inside their mittens. They will love you for finding a way for them to stay out longer to finish that snowman or snow fort.
This is one of the easiest ways to make a reusable hand warmer for kids. First, think about what size you'd like it to be. This will most likely depend on how old your child is. Take a sock, like one that is missing its partner, and fill it with cheap, dry rice. Use an amount of rice that will fill the size of the hand warmer you want. You can then tie the sock closed, or sew it up. Pop the sock into the microwave to warm it up.
Pouches and Pillows
Although there is some debate over which filling is best, these little pillow and pocket reusable hand warmers are as easy to make as a small bean bag. First, decide on the filling. Acceptable stuffing includes corn, flax seed, rice and beans. Each item has its advantages and disadvantages so choose what is best for you and your child.
Then, cut two squares in the size of your choice from cloth. Cotton, terrycloth and denim work well. Turn the squares so that the outside or patterned sides of the squares are facing inward, toward each other. Sew three of the four sides together at the edges and then turn the pouch right-side-out. Fill it with the filling of your choice, and sew the fourth side closed. Place it in the microwave for about a minute to get it warm.
Battery and Tin Foil
While this one seems more high tech and less homemade, it is still reusable and teenagers may think it's really cool. "Skiing the Backcountry" magazine recommends using a small battery and a piece of tinfoil to create a hand warmer. Wrap the piece of tinfoil the long way around the battery, covering both nodes, but leaving two sides open. This will create a nice little oven in about one minute. Don't wrap the foil around too many times because if it gets too thick, it will not work. When you want stop the heat, remove the tin foil. When you want to use it again, simply rewrap the battery in the foil.
Don't forget about those little toes! Reusable hand warmers can be put into snow boots, too.
Over time, most filler materials will lose their ability to retain heat. Open a small hole along the seam to empty and replace the contents.
If the filler material burns, simply change it.
Consider sealing the final edge of a hand warmer pillow with Velcro for easy access.
Sew covers for hand warmer pillows that can be changed to wash or for something new.