Crossbench senators Derryl Hinch and Nick Xenophon have made an early call on the government's plebiscite legislation.
They're not quite Hamish and Andy, but the Senate crossbench has its fair share of comedic duos.
Derryn Hinch on Wednesday gatecrashed the doorstop of fellow independent Nick Xenophon at Parliament House.
"Morning sunshine," Senator Hinch said. "Are you talking plebiscite?"
The two senators took turns in commenting about the government's plan to re-submit its same-sex marriage plebiscite bill to the upper house.
The Senate rejected the legislation late in 2016.
"We do not believe it is a good use of the Senate's time when nothing has changed on the floor of the Senate," Senator Xenophon told reporters.
The cost of a popular vote on the issue - $122 million at least - could be better spent, he said.
Senator Hinch said while he would again oppose the bill, the government had the right to bring the legislation back to the upper house.
"The plebiscite is dead, buried, gone and whatever they used to say about the GST," he said.
"Cremated," offered Senator Xenophon.
"It's a stunt. I know about stunts."