You will need:
Spray bottle
Essential oil
Filler liquid - witch hazel, rubbing alcohol, or water
It's up to you what your filler liquid is. I keep a bottle of 'tikvah' in the car and for that I like to use rubbing alcohol because it doesn't leave a wet feeling. If you intend to use this as a body spray I would recommend witch hazel, which has a lot of healing properties as well. For my bottle of 'shalom' that I use around the house I just use water. All three work well, so the choice is yours.
Fill your spray bottle with the liquid of your choice, approximately 90% of the way. Then add your essential oil and shake it up.
These are two combinations that I like.
Tikvah:
5 drops tea tree
5 drops lemon
5 drops grapefruit
2 drops eucalyptus
Shalom:
5 drops lavender
4 drops chamomile
2 drops lemon
2 drops grapefruit
1 drop cedar wood
Of course you can play around with these as starting points to come up with blends that you enjoy and benefit from. There are many essential oils with some of the same qualities so feel free to use those instead if that's what you have on hand. I personally keep a bottle of Tikvah (Hope) in the car, and it helps me turn from the stress of the day to the things of YHWH. The Shalom or peace blend stays in the house and I think it is especially calming before bed.
The sprays won't stay completely blended on their own, so give them a shake before you use them.
The awesome menorah soap doesn't really have anything to do with this project but I had to share it with you guys!