Lake Street Mercantile in South Lyon, Michigan on Sunday.
We each bought our own Olfa Chenille Cutter and a yard-and-a-half of cotton fabric. We cut five-inch-wide bias strips about 40-inches long, stacked them, and sewed 3/8-inch channels down the length. You really need a walking foot for this job.
Once the scarf is washed and fluffed dry in a dryer, the bias frays and creates the distinctive chenille nap.
Cindy showed us a cute baby blanket that was chenilled on one side only. The stitched channels create a quilt effect the un-napped side. Lots of interesting patterns and textures could be created using this method -- just make sure to stitch and cut on the bias of good quality cotton to achieve the best effect.
There's a nice basic how-to for chenilling at Quilt Bus.