Those who have visited Java Point Cafe lately might have noticed something called “The Great Wall of Lips.” It is a collection of small pieces of paper with lipstick imprints on them, all neatly arranged in several rows on a wall near the entrance. It certainly is an attention grabber, but many might wonder what it is and who was responsible for it.

As it turns out, The Great Wall of Lips is a promotion for Benicia resident Catherine McSharry’s new musical black comedy “Lefty and Liela Get it Right,” which is set to be performed in a workshop production at PianoFight in San Francisco on Aug. 13 and 14.

The story of “Lefty and Liela Get it Right” centers around a left-handed Bay Area tech luminary named Lefty, who is set to marry a young woman named Liela. However, Liela reveals a devastating bombshell that she is right-handed on their wedding day, putting their fairy tale romance in jeopardy.

McSharry has had the play in mind since her college days.

“In my early 20s I wrote a song called ‘My Lovely Little Lefty,’” she said. “I was writing playful songs and dating a left-handed guy at the time. I loved the alliteration in the lyrics that came to mind, ‘My lovely little Lefty left me.’ But why would he leave me? Ah, of course…’He left me when he found I was right handed.’”

The alliteration stuck with a lot of people, including McSharry’s cousin who she saw singing part of the song at a family reunion years later.

“I couldn’t believe it,” she said. “He still knew the lyrics!”

The premise of a left-handed man leaving his fiancee because he found out she was right-handed was something McSharry wanted to build an entire musical around. Over the years, she spent time writing scenes and songs in Benicia’s various coffee shops, and material from the play was first presented at First Street Cafe in July, 2015.

One of the plot points of “Lefty and Liela Get it Right” concerns Lefty collecting the lip imprints he receives by women who kiss him on the cheek, which he configures into an art piece he puts on display called “The Great Wall of Lips.” This obsession traces back to a pivotal kiss on the cheek Lefty received in his youth, and he plans to save Liela’s lip imprints before something goes horribly wrong.

McSharry said her friend Julie Daigle approached her with the idea of doing an actual “Great Wall of Lips” at one of Benicia’s coffee shops to act as a promotion. McSharry approached Java Point Cafe, where she had written a good portion of the play, and the restaurant was open to doing the promotion. People who stop by can leave their lip imprints on a provided piece of paper, which will then be hung on the wall.

“It promotes the show, collects lip imprints, and gets the community involved in the creation of a unique public art piece,” McSharry said.

As of this writing, more than 150 people have participated, including Mayor Elizabeth Patterson.

McSharry is thrilled with the attention the wall has gotten.

“It benefits the community as a curiosity and a growing public art piece that celebrates our uniqueness,” she said. “Each lip imprint is unique; as varied as a fingerprint, as individual as our personal quest for true love.”

McSharry encourages people to come to the workshop production in San Francsico, which will feature the artistic direction of Farah Dinga and the musical direction of Billy Wolfe, as well as two talented leads.

“Alan Coyne makes an entertaining Lefty,” she said. “His improv background makes him particularly fun to watch. People who saw the January showcase (also at PianoFight) will be happy that Ayelet Firstenberg is back as Liela.”

McSharry believes viewers will also enjoy the humor, catchy songs and larger-than-life characters.

“Lefty and Liela Get it Right” will be performed 3:30 to 5:30 on Saturday, Aug. 13– which happens to be International Left Handers Day– and Sunday, Aug. 14 at PianoFight, located at 144 Taylor St. in San Francisco. Free tickets can be reserved at EventBrite.com. For more information, visit leftyandlielagetitright.wordpress.com. To contribute to the “Great Wall of Lips,” stop by Java Point Cafe at 366 First St.