Thanks Kerry! Those are really good, and I am not familiar with many of them. Like I said, the Australians are brilliant when coming up with these phrases. I often here them when I watch Australian movies. I particularly like these -
Scarce as rocking-horse shit.
Uglier than a hat-full of nuns’ cu*ts. (We have a similar one - "Ugly enough to stop a clock" but I like yours better!)
As useful as - lips on a chicken / tits on a bull. (Around here we say "As useful as tits on a boar")
I think this one is my favorite though - "He has a head on him like the south end of a north-bound camel."
Thanks Kerry!
All of them are very good!