Certainly! Here's a simple recipe for a homemade glycerin massage oil:

Ingredients:
- 1/4 cup of vegetable glycerin
- 1/4 cup of carrier oil (such as sweet almond oil, jojoba oil, or coconut oil)
- Optional: a few drops of your preferred essential oil for fragrance (lavender, chamomile, or rosemary are popular choices)

Instructions:
1. In a clean glass bottle or jar, combine the vegetable glycerin and carrier oil. Stir or shake well to ensure they are thoroughly mixed.
2. If desired, add a few drops of your preferred essential oil for fragrance. Be mindful of any allergies or sensitivities you may have, and adjust the amount accordingly.
3. Close the bottle or jar tightly and give it a good shake to blend all the ingredients together.
4. Your glycerin massage oil is now ready to use!

To use:
1. Prior to each use, give the bottle a gentle shake to ensure the ingredients are well mixed.
2. Pour a small amount of the glycerin massage oil into your palms and rub them together to warm the oil.
3. Massage the oil onto clean, dry skin using gentle, circular motions. Focus on areas that could benefit from hydration or relaxation, such as the back, shoulders, or legs.
4. Continue massaging until the oil is absorbed into the skin.

Remember, everyone's skin is unique, so it's always a good idea to perform a patch test before using any new product, especially if you have sensitive skin or known allergies.