Australian Thanasi Kokkinakis has been out of action all year after undergoing shoulder surgery. But he’s found positive ways to spend his time, like donating $500 to the Childhood Cancer Association in what’s called the Ultimate Pie Challenge.

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Remember the Ice Bucket Challenge? This pie thing seems a whole lot safer, and tastier.

A few musicians have also got in on the donating fun.

Kokkinakis nominated Andy Murray, Lleyton Hewitt and footballer Maty Ryan. Let’s see how big this pie-smashing trend gets.