The method I have found works best is a nasal aspirator (also called an ear syringe, bulb style).
Also using a milk jug works amazingly well for larger extractions as you can squish the milk jug and have the naphtha raise to the tapered top.
The aspirator has a narrow opening at the bottom of a long thin tube. If you end up sucking up some of the basified mimosa stew you simply let it settle for a few seconds and squirt back out the basified water...once you see naphtha coming out you move it over to the collection jar and empty all of the naphtha out.
The methods I've tired:
Turkey baster - too big, hard to handle, difficult to get thin layer of naphtha
Syringe - naphtha eats the rubber stopper, cannot be used for toluene. Works well, but stopper jams quickly and rubber is dissolved in the naphtha (safety concern)
pipette - hard to get thin layer off. only works for larger amounts, very slow, not effective
Eye dropper - takes too long, even for a small amount of solvent. Very effective, but very slow
plastic fish tank hose - ineffective for small amounts of solvent, possible naphtha contamination (safety concern)
Nasal aspirator - large bulb means large amounts can be moved with only a few pulls, small hole and long neck means thin layers can be pulled quickly and efficiently. Allows for easy removal of basified mimosa water that got pulled with the naphtha. Most are naphtha resistant, meaning that your naphtha will not dissolve the aspirator. But the largest one you can, it will be as easy to use as the smallest one you can find, but you will be able to move a larger volume of naphtha quickly.