they do that on the central coast, they put huge signs in place of the dead tree. fuck those entitled NIMBY arsehols who do this

obnoxiously fluorescent backlit wacky inflatable wavy arm thing

Some councils use shipping containers and billboards, per the article:

Councils in Victoria including City of Port Phillip and City of Bayside (where trees have been illegally removed to enhance views of the bay) have erected view-blocking billboards in front of poisoned or removed trees. Other councils stack shipping containers where trees once flourished.