Partly out of necessity and partly out of wanting to try a new craft, my latest craft his week has been making microwavable neck wraps and eye masks. I used soft flannel in fun patterns and filled them with rice. I tried putting peppermint tea in one wrap (for lack of essential oils) and it came out spelling pretty good when heated up! The key is to make two separate compartments so that the rice evenly distributes throughout the wrap. You can see below that I created two chambers in the neck wrap by sewing straight down the middle before filling with rice. You also have to remember not to overfill it or it won't be pliable enough to curve around the neck.
I added a little gift tag with heating/cooling directions to this neck wrap and eye mask set...this is going to a friend who I know gets migraines often, so hopefully this will help!