The 5 Days of Equality campaign is a worldwide initiative to say "happy anniversary" to the 31 couples whose same-sex marriages were revoked by the Australian government this time last year.
In December 2013, the Australian Capital Territory parliament passed a bill that made the territory the first part of Australia to legalise marriage equality.
The 5 Days of Equality campaign is asking people to upload photos and tweet out support with the hashtag #5DaysOfEquality, with the best messages being transcribed on to printed cards and delivered to the 31 couples across Australia.
It is hoped that "The Paper Anniversary" will be made up of thousands of messages of support.
You can watch the video for #5DaysOfEquality here.