They look lovely! 
I’m playing around with EOs for my homemade soap projects right now, but I haven’t delved into the world of the crystal oil perfumes in the roller bottles yet. I see the lovely Mystique shared a recipe, and I know we have some more around the forum that might help guide you craft your own!
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@Susurrus made some beautiful Chakra roller perfume bottles and shared about the crafting process.
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@Cosmic_Curiosity put together a handy Essential Oil Directory that includes some lovely blend combinations
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@Silverbear has a video about Crystal and Oil Potions
Good luck and happy crafting! 
