View it in HD [ame=http://www.youtube.com/watch?v=C7PfwSbm2HQ&feature=channel_video_title]YouTube - Blue Dot Milk w/ Inline AC (HD)[/ame]
Somewhat expensive but I don't think it's that bad; $180 for the tube, and $160 for the inline AC (it's also a bubbler, I have a clip and a sherlock glass connector for it.)
Really? Well, its 7mm glass - now I'm not saying it wont break, but I'm sure it could take one bump before giving up all of it's lives. I've knocked (not hard) the bass of it against my sink (from filling it up) a couple times, I haven't noticed a scratch.