i'll bend a paper clip for the main drop hole, and sewing pin the recessed hole in the white plastic, but first i check for: when holding the bottle at a angle like i am goin to pour it out, to see if it needs it first.
eric's bottles are spill proof, and they are a two handed refill job when used, but when i drop it, i get to miss out on the mad dash to clean up fore das cat finds it...
by the by, TW uses the same inner dropper, and include a glass dropper...
and eric says something about enlarging the holes...go slowly to get the right size...