1 oz. Nalgene bottles make great traveling inkwells.

I read about these on FPN and saw that the Container Store(as well as REI) had them in stock. They were only 79¢ each. The bottles are sturdy, waterproof, and translucent(I can tell what color ink it is and not allow too much light in). They're made of high density polyethylene[HDPE]. I made sure to get the wide mouth bottles. The bottles with the normal sized openings could fit all of my pens, but the wide mouth ones would be easier to clean. The seal is tight. I did some drop and shake tests with ink in them(I should have used water) with no leaks. Now I want to buy more of these and a few of the larger sized ones as well. http://flic.kr/p/cukyzm