The password that would have unlocked Dawn's Piplup C-Gear skin on the Pokémon Global Link would have been PIPLUPCGEAR2012 however the Piplup C-Gear skin promotion has been removed from the Promotions due to it only being available from a limited time, it had been available starting on April 5 of 2012 and it went until May 23 of 2012.
The password to unlock the Porygon-themed event for a C-Gear skin which will be a Porygon-Z C-Gear skin is PORYZCGEAR2012
The password is PGLWELCOME
The Zoroark C-Gear password will be released on September 7th, 2011.
This is the password I found for it: PikachuCGear
NPCGEAR is the password. source: serebii.net ENJOY!
VICTINI2011
PGLWELCOME
NPCGEAR
the password is PGLwelcome on pokemon global link.
PGLDR34M is the password. IT'S CAPS SENSITIVE SO COPY AND PASTE
PGLDR34M It's caps sensitive
WorldsCGear