What about all of these liquicaps you see these days like Lipo6 etc...
Chances are that Lipo6 and other liquicaps are not constituted with an alcohol or PEG form of base to suspend the compound. So they can practically exist in anything.
It is really not the liquid form itself that is the problem, after all you can stick a syringe in a liquidcap, drain it and refill it with water or nearly anything. But when you have a compound that has used a solvent to keep it suspended and from crashing, it is a different story.
A Visine bottle could work if you made sure you measured out how many drops from the bottle would equal the equivilent of 1cc (or whatever you are taking) of your compound.