You can't say you have been to Hong Kong if you haven't tried our "pantyhose" milk tea. If you feel nauseated by the vision of someone filtering tea over a pair of pantyhose, take a look of the following video -- a news coverage of the very first HK milk tea workshop co-organized by secrettourhk and the Association of Coffee and Tea of Hong Kong. (The coverage is in Cantonese but I think you'll get the idea through footages of the workshop and the interviews with some foreign participants.)
http://youtu.be/BveBhF9MCuY
I'm in for the next workshop!