In common with other kinds of stinkhorns, Clathrus archeri is not proven to be toxic, but it should be treated as suspect. Even if you can tolerate the stench it's a risky snack. After you! No, no... after you, I insist!
In fact the eggs of various stinkhorns are edible, but there are no records of fights having taken place over these delicacies as there certainly are over truffles, morels and some kinds of edible boletes.