Two boys and a man are on bail in Australia after being accused of causing A$1 million ($1.1m) worth of damage by using slingshots to hurlmarbles at businesses across dozens of suburbs.
Some 87 separate incidents of windows being smashed were reported from September to December, with most happening in October and November.
It happened across dozens of Melbourne suburbs including South Yarra, St Kilda, Bentleigh, Collingwood and Docklands.
The final repair bill is still being worked out but investigators believe it will be more than A$1m, with the price of fixing the windows of one building alone costing A$150,000.