The post has received more than 50 likes and comments so far, with many people asking to buy a badge - which shows Collins in his All Black days kneeling down in front of a staircase leading to the clouds.
A memorial walk has also been organised with the help of Porirua councillor and childhood friend Izzy Ford.
The "Porirua Walk for Jerry" on Sunday will start from Waitangirua Mall and follow a route run by Collins' and his teammates during his early days at Northern United Rugby Football Club.
Ms Ford said the whole of Porirua was still struggling with the tragedy.
"We're still in mourning, we're going to be in mourning forever it feels like.
"I think it's a great way to pay homage or tribute to Jerry and to show his family and the world how important he was to the people of Porirua and to those far and wide."
Ms Ford knew Collins when they were growing up as youngsters in Porirua and her husband played rugby with him for a time.
Collins always had a strong presence in the community and was very "grassroots" even after he became well known, she said.
"A lot of the people back home will remember him ... he would buy iceblocks for the kids, do things like that. You would not normally find most people walking around in their lava-lava in town. Jerry was just Jerry.
"Obviously some people aren't going to be able to make it to his funeral, whenever that is going to be so it's a good opportunity for us to sort of unite in this very very sad time."
The group was planning to pack the stadium at Porirua Trust Park and officially retire Collins' Number 6 jersey for the season there, she said.
People were asked to wear blue and white colours to represent the Norths club.
Collins' friend and fellow Wellington rugby player Ali Koko kicked off the initiative with Ms Ford after hearing about a 1500-strong silent march through the town centre of Narbonne organised by his French rugby club.
