Today is the last day of the famous Warwick Rowers' crowdfunding campaign, which helps the guys produce the wildly erotic naked calendars they've been releasing since 2010.

All proceeds from the calendar's sale benefit the Rowers' fantastic Sports Allies charity, which aims to squash homophobia in sport through education and unwavering support of LGBT athletes.

“Homophobia is still a problem in sport, and we’re here to be part of the solution,” the guys said in a video message from London Pride this year. “We want inclusion for everyone.”

To celebrate the final 24 hours of fundraising, the Warwick Rowers shared some final cheeky teaser shots with Gay Times, including one epic 18-man ass grab:

Eligible products on the Rowers' website include their current and all past calendars, a huge selection of wall posters, beautifully framed artwork, and a coffee table book, as well as signed merchandise and official Warwick Rowers apparel.

If you're interested, you better hurry up, queen! The sale ends today, Monday, November 7 at 8pm GMT.

Below, check out some more new teaser images, and the inspiring message the guys shot at London Pride.