use this technique in order to emphasize the contour of the object. To do it you have to entwine two warp threads (front and back) with the working thread. To make a contour we usually use thicker threads.
Love the look of woven wall hangings? Easy Weaving with Little Looms has instructions to help you create your own, with varied yarns, stitches, and other techniques.( want to make with plastic rope. (one used to tie bundles.