I used a combination of beeswax and palm kernel flakes to create my DIY wax melts with beeswax. While soy wax seems to be the go to for this type of project, I make soap. Therefore these were items I had on hand. If desired, you can use soy wax in their place.
Otherwise, the combination of these two ingredients melt the same as soy wax and offer a strong fragrance when use in your wax melt warmer.
To make your wax melts, weigh out equal parts beeswax and palm kernel flakes. Combine in a double boiler and heat until melted.