Flattenable Paper Cups

In Taipei, instead of drinking fountains they have water dispensers (sometimes hot water) with these flattenable paper cups.
(I can’t find “flattenable” in Google’s dictionaries, but the word gets 848 hits, so it’s not exactly a neologism. We need the word, anyway.)
February 4th, 2009 at 6:50 am
How Can I Get this Paper Cup.
Regards