Us aussies have been playing cricket with them (Score 1)

Or golf, depending on what is handy. I live on the Gold Coast and this place is rather infested with them during summer. It's almost become tradition to use them as golf/cricket balls. My brother managed to hit one around 100m down the road.

Now, I usually love animals. Green Tree Frogs, a cute little native frog, have almost become extinct in this area because of cane toads. Cane toads are one of the rare animals that I have absolutely no remorse in sadistically killing.