New indoor event in Midland, Michigan. The Big Ol' Barn Sale! Sat. May 16, 2015. Fairgrounds. FREE to public. Vendors welcome selling: Antiques, Flea Market Finds, Memorabilia, Collectibles of all kinds, Unique items and Junk. Two large pole barns packed with all kinds of neat stuff for sale. Y'all Come to Buy or Sell. Follow us on Facebook. Email for vendor applications.