I'm looking for a few very small (1/2 oz or 1 oz) Nalgene or similar quality bottles for dispensing drops. I like the flip-top dispensing droppers on the larger Nalgene bottles, but can't find smaller ones. Some of their small bottles have the removable cap, which I don't want, because it is prone to accidental opening. I want one that is rugged and leakproof.

Any suggestions? Thanks!

David