The September First Friday will be of particular interest to people with pets.

“It’s always interesting to see what shows up. We’ve had a wide variety of pets, from pigs to dogs,” said Frances Jo Hamilton, executive director of Main Street Delaware, the non-profit organization which puts on the monthly events.

From 6 to 9 p.m. Friday, the third annual pet walk takes place.

Here’s how it works: People can register their pet at Button Up, 29 N. Sandusky St., online at www.mainstreetdelaware.com or the Main Street Delaware office at 20 E. Winter St. on the night of the event. For the $10 fee, the pets will get a doggie bag, a map to downtown businesses that are pet-friendly enough to provide them treats, and a Facebook photo.

“We’ll start at our office and have a photographer take all the pets’ pictures,” Hamilton said. “Then we put those on Facebook Saturday morning. There’s a link to the voting on their ticket, so they can get their friends to vote for their favorite pet. The pet who gets the most likes gets the honor of being our furry marshal in our Christmas parade. It’s one of the most popular prizes we’ve ever created.”

In fact, there was a disqualification last year because someone randomly generated extra votes.

Up to 100 pets can register for the event, with 18 businesses handing out doggie treats, up a couple from previously held events.

“We cap it at 100 tickets so the merchants know what to prepare for,” Hamilton said. “It’s just like the Chocolate Walk (in February), only for pets.”

Also at the First Friday is a hands-on display of public works equipment, and a new teen area hosted by the William Street Lighthouse Youth program, and music from Blue Line Entertainment.