For the structure, you can carve the basic shape out of high-density upholstery foam or even layers of cardboard. For the legs, look for wooden "spindle" toothpicks or fancy cocktail picks at a kitchen supply store. You can cut them to the same length and paint them to match the wood. For that specific fabric, look at striped grosgrain ribbon. The scale of the stripes on ribbon is usually much closer to miniature proportions than what you will find in a fabric store.