I hate squeeze bottles, hate them. They are hard to clean, some leave taste (hey, that was 20 years since I used one), and they are a nuisance overall. But I'd rather use one if I was a pilot. And get my caffeine hit on something that goes on a squeeze, like power drinks, I don't know.
Beer icon, because they can't be served on squeezes. Neither they can be served to pilots on duty.