Massage oils can also be doubled as bath oils, not all the time though as some do not mix well.  It all depends on the ingredients and oils used.  I will make a note and tell you if it is suitable for both.
When making massage oils the idea is to evenly distribute one teaspoon of essential oil to 4 ounces of carrier oil.
Choosing your carrier oil depends on your needs. 
Sweet almond oil is a little heavier than other oils. It is great for dry skin and long massages. It has a lot of good vitamins and protects the skin.
Grapeseed oil is more lightweight and is good for bath oils, as well as light massage.
Sunflower oil of great for baths, and is good for the skin but not suited for massage.

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