Not satisfied with having brought rainbow buses and a rainbow roundabout to the streets of Canberra, the ACT Government has announced drivers will now be able to purchase rainbow plates for their cars to commemorate the legislation of same-sex marriage.

From today residents can purchase the plates for $60, which covers the entire cost of their production so ratepayers will not be hit.

ACT Attorney-General Gordon Ramsay said the move was another way for Canberrans to show they were part of "the most inclusive, welcoming city".

The plates will be manufactured at no cost to ratepayers. ( ABC News: Elise Scott )

The announcement followed earlier news that couples who married during a brief window in 2013 when the ACT legalised same-sex marriage would have their application fees waived if they chose to reaffirm their unions under new laws.

Less than one week after the ACT put laws in place to allow same-sex couples to marry, the marriages were annulled when the High Court overturned the law.

Now that the Federal Parliament has legalised same-sex marriage, the ACT Government has said it will waive the first certificate fee of $55 for those couples if they choose to remarry.

Sorry, this video has expired Canberra celebrates same-sex marriage Yes vote with a rainbow roundabout (Supplied: Luton Projects) ( Supplied: Luton Projects )

ACT Attorney-General Gordon Ramsay said it was a way of acknowledging the difficultly those couples faced.

"We're pleased this is another way we can show our support and acknowledge this important change and celebrate with them," he said.

"It's been a very difficult time for a number of people."

Also included are any couples who are registered for civil unions under ACT law.

The government said all-up about 80 couples were eligible.

'A touching measure'

Anne-Marie Delahunt, who married her partner Meg Clark in 2013, said she would marry again early next year.

Anne-Marie Delahunt (R) married Meg Clark in 2013, and they will marry again in February. ( Supplied: Anne-Marie Delahunt )

"Meg and I did decide last night, what our new date would be ... we'll get married in early February, we've decided," she said.

"We'll end up with an old marriage certificate, and a new one.

"I think it was a touching measure from the ACT Government to say that our second marriage certificate will be free."

Ms Delahunt, who is also chair of the ACT Government's LGBTIQ advisory council, said she had been left "tired and wrung out" by this week's parliamentary debate.

"But very very proud that Australians voted the way they did," she said.

"We've come to a point where LGBTIQ people are fully part of Australian in terms of the end of this particular form of discrimination."