Chance to Shine is a national charity which helps to bring cricket to children across the UK to help them develop through the game.
Now residing in England, the 49-year-old has vowed to “give up the booze and not shave for 48 days to help raise funds for Chance to Shine.”
"The idea came about after we visited Australia over Christmas and the new year," Marquet said.
"It was the first time we had been home in nine years. When we got back to England we were all a bit blue, especially the kids so we decided to do something positive."
"The charity Chance to Shine works with children. It takes cricket to new places and uses it to ignite new passions, teach vital skills, unite diverse groups, and educate young people.
"For me it's a nice way to stay healthy and raise money for a great cause."
Since 2005, the charity has reached over 3 million children. Its vision is for all young people to have the opportunity to play and learn through cricket.
You can donate here and track Josh's progress via Twitter.
Marquet played 40 games for Tasmania over a six-year period.