Entries are piling up for a slogan contest being held this year by the North American Manure Expo.

The trade show, now in its 13th year, showcases the latest technology in manure handling, treatment and application. It’s being held in July in Chambersburg, Pennsylvania.

An official event slogan has already been settled on: “2015 Manure Expo: Manure than you can Handle!” It will appear on the front of a T-shirt.

But contestants are vying to land a spot on the back of the T-shirt, which event organizers say will display 10 of the “crappiest” also-rans. Writers of the 10 alternate slogans get a free T-shirt.

Many entries, predictably, contain a vulgar substitute for “manure.”

Here are 10 (printable) entries from the approximately 200, that were submitted by Thursday:

—Manure Expo, where nobody stands behind their product.

—You provide the creek. We provide the paddle.

—Keep your friends close, and your manure further.

—The future of what’s left behind!

—We do doo. Do you?

—Manure Happens (to be Nutritious!)

—Been there, Spread that … @ the North American Manure Expo

—Proud survivor of North American Manure Expo … It got deep.

—Heaping piles of fun!

—North American crap shoot.