How do you make an already hot calendar filled with firemen just a little bit hotter?

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You team up with the RSPCS and add puppies, of course, giving all the proceeds to charities.

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The Firefighters Calendar of Australia has been something of a tradition since 1993, and all the proceeds go to the Children’s Hospital Foundation and the Westmead Children’s Hospital’s burns unit.

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"We have now raised $2.1 million to our charities which include, the Children’s hospital Foundation, mates4mates and the RSPCA," said the calendar’s director, David Rogers.

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And yes, all the men featured in the calendar are actual firefighters and not just incredible eye candy.

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As for the puppies, they're on loan from Safe Haven Animal Rescue and are all up for adoption.

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The RSPCA runs 40 shelters, and it costs more than $80 million each year to deliver all of their services that help improve the lives of abandoned and abused animals.

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And the Burns Unit treated more than 1,600 new children with severe burn injuries in 2015 and conducted follow-up assessments for hundreds more children.

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In other words, these guys are more than just pretty faces (if you're even looking at their faces). They're helping to do really important work for important causes.

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And just in time for the holidays, the 2017 calendar is now available for purchase here. They make great gifts. Here you go, Grandma! After all, it’s for a good cause…