A West Australian grandfather has surprised the Prime Minister at a Telethon segment raising money for sick children.

76-year-old John Bradley has raised $25,000 by wearing the green mankini.

Mr Bradley handed two novelty cheques, representing the money he’d raised, to the prime minister on the Channel 7 segment.

You can donate HERE

He told Ben Fordham it all started with a bet…

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Image: Channel 7