Heat up 4 strips of salt pork in a microwave. You could also use bacon, but the salt pork has more fat, giving you more grease for your mixture.
Pour 2 cups epsom salt in bowl, then 1 cup borax.
Drain fat away from meat and mix with a few drops of liquid smoke. The liquid smoke helps make the scent, it won't smell right without it.
Mix the grease/smoke mixture into the salt mixture. Mix thoroughly by hand, or else it will not blend all the way. If there seems to be too much grease, add more borax and salt. If it is too dry, heat up more salt pork and repeat steps 1-4.
Enjoy bacon scented baths by adding your salt whenever you take a soak. To store, just put it in a bottle and save it for later.
Link -via Unique Daily
Update: I just found out you can buy this already made!