Soda Bottle Cap Dispenser

I use PET soda bottle caps a lot when airbrushing and model / prop building. I would use them as small paint mixing cups, for glueing, painting, washings - you name it. There is plenty of free supply from all of the bottles one uses all of the time.
Thought I'd create a small dispenser for the caps with a small footprint for the airbrush table.
It holds roughly 18 caps.

You won't need any supports if you print the tube upside down. I strongly suggest printing with a brim, though.

Version 2: I altered the bottom part slightly so that the cap up for dispensing moves forward slightly to get a better grip on it. This made it necessary that the hole in the tube be a bit bigger to allow for the forward movement. This should also make it a bit easier to grip the cap.
I haven't printed it yet, so please let me know if/when there's something wrong with it.
Every and all feedback greatly appreciated.