Laken ISO 70 Aerogel-Insulated Water Bottle
The "Laken ISO 70" water bottle's outside shell is made of aluminum, but its filled—partially, of course—with aerogel, that wonderfully lightweight and low density material that weighs just three times more than air. It's a great insulator, helping in making a water bottle that's half the weight of a traditional all-metal vacuum thermos.
The Laken ISO 70 aren't cheap, though, at 60 bucks a pop. But in a pinch you could crack one open and catch interstellar dust.
Product Page [Laken.es via Oh Gizmo]

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these appear suspiciously similar to sigg water bottles.
http://www.mysigg.com/
And the sigg bottles appear "suspiciously similar" to the MSR Aluminum fuel bottle...
Neither of which can catch the elusive interstellar dust...
Speaking of aerogel and interstellar dust here is a link to a Canadian Broadcasting Corporation Quirks & Quarks podcast on this very subject:
http://podcast.cbc.ca/mp3/quirks_20080126_4544.mp3
I may be biased, but I find Quirks & Quarks to be the best science podcast around. Main page is:
http://www.cbc.ca/quirks/index.html
Personally I drink my water at room temperature out of mason jars.