Some are scary, some are whimsical, some are crazy colorful and some are sort of pretty. All of them are festive and fun.

They are the scarecrows, stars of Wilton’s annual Scarecrow Fest, back for the third year — a project of the Wilton Chamber of Commerce in cooperation with The Town of Wilton and Trackside Teen Center.

The contest, open to Wilton-based businesses, organizations, clubs and families, will challenge participants to construct creative scarecrows to be displayed during the last two weeks of October in Wilton Center. The scarecrows will be attached to 75 town lampposts beginning Oct. 18. A panel of judges will award top honors to five entries.

The scarecrows will provide a festive backdrop for the chamber’s Pumpkin Parade and Trick-or- Treat Walk on Saturday, Oct. 26, and the annual Halloween Hustle 5K and Scarecrow Scamper Kids’ Run on Sunday, Oct. 27. “The October “Hallo-weekend” trifecta promotes Wilton Center as a vibrant destination to shop and dine, while participating in family-friendly community events,” a chamber press release said.

Official rules and entry forms may be downloaded from wiltonchamber.com, and will be limited to the first 75 entries postmarked by Oct. 4. Scarecrow kits will be available at Trackside Oct. 8-11, from 10 to 4. The kits, which will sell for $30, include wooden post frames and hay. Scarecrows may represent a business or group’s identity or be decorated just for fun.

Scarecrows will be installed on Wilton Center lampposts on or about Oct. 18 and will remain through Nov. 1. Judging will be completed and winners announced at the Pumpkin Parade at 2, on Saturday, Oct. 26.

Information: wiltonchamber.com.