The Fleabag star has placed the gold tuxedo she wore to Sunday’s ceremony on eBay as wildfires continue to burn down under.
The comedy writer and star won two awards while wearing the outfit from Australian designers Ralph & Russo.
The starting bid stands at $(AU) 77,000 Australian, which is about £40,000. The auction is set to end on 20 January.
In a video shared on the official Twitter account for Fleabag, Phoebe showed fans where famous faces had touched the outfit, including Tom Hanks when he shook her hand, Sir Elton John giving her a hug and the shoulder where Olivia Colman “rested her cheek”.
James Bond star Ana de Armas and Killing Eve’s Jodie Comer are also said to have touched the tuxedo.
Phoebe said: “I’m very excited that this stunning, one-of-a-kind, couture tuxedo created by Australian geniuses Ralph & Russo will continue its journey by contributing to this urgent cause.
“If money raised by its auction can help raise funds to fight the disaster in Australia, the future impact of this suit will be far greater than the luck it brought me and the Fleabag team at the Golden Globes last weekend.”
While the tuxedo is custom made, it is reportedly similar to a UK size nine.
Money raised from its sale will be donated to the Australian Red Cross Disaster Relief & Recovery Fund, WIRES Wildlife Rescue Emergency Fund and Wildlife Victoria.
Phoebe is just the latest celebrity to pledge support for Australia as it continues to be ravaged by devastating wildfires.