"It's rope, soap and calico for me," Gursey kept on repeating.
That was how the soldiers used to announce a hanging in the penal
settlements. They would come out into the prison yard and shout
"Rope, soap and calico for one!" and Gursey dreamt that they were
holding him down while they shouted it in his ear. He struggled
with these phantoms till the veins swelled up, blue and knotted, in
his thin neck. "S'elp me God, I didn't shoot him. I didn't! I
didn't! Tell them, Cabell. Tell them I didn't want to shoot
McGovern."

The above is from

"Title:      Landtakers: The Story of an Epoch (1934)
Author:    Brian Penton (1904-1951)
* A Project Gutenberg of Australia eBook *
eBook No.: 0200851.txt
Edition:    1
Language:   English

The rope, soap and calico phrase is one I've never heard before. I think Bob Coltman in Oz would be the guy to ask on this.