Heyy I live somewhat permanently in hk... There was this gallery thing in Kowloon Hong Kong with vocaloids and stuff called Asian New Story check this out
oh yea, stick the stuff on Google Translate if you can't read it
for cosplay shops:
(at Causeway bay, and yes stuff in HK are cheaper than Japan)
Yayyy hope this helped, and I'm SO going there
btw in Mong Kok or something, there are stalls selling colored contacts or something... so says my friend.