Literally, the easiest thing in the world to make!
1/2 C coconut oil
1/2 C baking soda
30-40 drops of your preferred essential oil
(Suggested scents for women: lavender, sage) (Suggested scents for men: cedarwood, cypress, clove)
Put coconut oil in a bowl and mix in baking soda. Add oils and then store in an empty deodorant container!