FlyingForFun, I believe the nozzle/teat/nipple thing to which you are referring is commonly called a sport's cap... or sports cap
If you're flying for a long time, and want to be able to keep drinking while having your hands free, then a
Camelbak is ideal. They have a plastic bladder which you fill with your preferred tipple, and then a long tube ending in a valve. The whole thing comes enclosed in a rucksack-style bag (which you can sling over the back of your seat), with small pockets for a mars bar or GPS.
If you want to do this the cheap way, get hold of a
Platypus, drinking tube, and valve, and shove it into an old rucksack. If you fill it with minced duck, it would be a duck-filled-platypus :o
I'm not sure about the Camelbak, but a Platypus you can put hot liquids into. It's not insulated though, so you'd have to improvise with that a bit.
Good luck, and let us know how you get on!