那裡買塑膠蓋瓶塞

You can use goggle to search using --"Hong Kong Champagne Bottle Supplier & Manufacturere " . You can get a list of HK companies supplying wine , champagne & also stoppers from TDC . You select what suitable & call them to ask what you want .

u can go to citisuper/sogo supermarket, maybe there should be hv it.

good luck!!!