Craft-O-Ween: 10 a.m., Applied Technology and Trades Center, 5015 W. 20th St., Greeley. Head to Aims Community Lab to work on Halloween costumes. The Community Lab has many resources, such as 3D printers, a sewing machine, air-dry clay, paint, jewelry making, button making and the Cricut to create custom printed designs on fabric. People will be on hand to help you make the costume of your dreams. Free, events.aims.edu.

Halloween Trick or Trot 5K: 10 a.m., Aims Community College: Outside Student Commons, 5121 W. 20th St., Greeley. Join for a spooktacular run filled with fun, costume contests and prizes for top finishers. Enjoy free food, photo ops and plenty of Halloween cheer. This 5K is open to the entire community. Free, events.aims.edu.

Downtown Greeley Trick or Treat Street: 4 p.m.,

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