A simple essential oil bottle holder. 

Capacity:
6 x small (23mm)
6 x medium (26mm)
3 x large (29mm)

This was my first attempt at using Fusion360 so be kind with comments ;-)

I printed in Bambu Cobalt Blue Metallic PLA on an X1 Carbon, PEI plate, 0.4mm nozzle, default settings, and auto brim.

Hopefully someone else finds this useful. Enjoy!