(Pictured: female riders canter naked for the calendar.
It came as hundreds of thousands of commuters across Britain were left stranded this morning in the worst disruption for decades as the RMT guards walked out on five networks - from long-suffering Southern to Merseyrail.
Members of the RMT union staged a protest today at the official picket line at Waterloo Station (bottom right).
Mick Lynch, (left picture) assistant general secretary of the RMT, says the strike is about safety and passengers make a 'lethal gamble' with their lives if there is no guard on board.
But he looked unfazed today as he joined the millions of commuters who have been carried safely to and from work on them for years.
They're hoping the cheeky calendar will raise money for the Injured Jockeys Fund.
Wearing nothing but their riding helmets and boots, the models pulled a variety of saucy poses for the shoot, which took place on Fern Farm, in Adlestrop, Gloucestershire.
They all worked at Neath Port Talbot Hospital, but will never have to cook another hospital meal again.
Bosses at the hospital said they were deserving winners after years of hard work in the kitchen cooking tens of thousands of meals.
The school said Shannon would be educated in isolation if she refused to take out the stud.