Some kind of monstrous Puffball, in US these are called "Dead Mans Foot", here they are "Horse Dung Fungus", both aptly descriptive, genus is
Pisolithus
Black-headed Bull Ant
Myrmecia nigriceps
Ribbed Case Moth case
Hyalarcta nigriscens
Golden-tailed Sugar Ant
Camponotus suffusus
