NOTHING puts the buttock in the Burrumbuttock Hay Runners like a nude charity calendar.
The cheeky fundraising venture sparked by hay run founder Brendan "Bumper" Farrell is all in the name of fun and lending a hand.
"It's always good to get everyday Australians with different body shapes out there - farmers and truck drivers showing normal people with their pimply arses and that," he said.
Brendan said surprisingly there was no shortage of truckies willing to play supermodel and go natural for the cause.
"As soon as I put it on Facebook, I had 30 or so truck drivers put their hands up to take their gear off," he said.
"They have all been on the hay runs before so they know how important it is to raise the money to fuel the trucks."
With the help of a team, Brendan, who also features in the calendar, said the project should be completed before Christmas.
"Yeah, I am in it. I have the love handles everyone gets in their 40s," he said.
"It's all what you see is what you get."
The charity will also hold another run in January.
Drivers willing to volunteer can get in touch with the team on the Burrumbuttock Hay Run Facebook page.