Made mostly from standard 22-inch bandannas, the garments are approximately size 5.To alter the size, simply buy larger or smaller bandannas and adjust the measurements. Look for them at army-navy stores or outdoor markets. For vintage designs, try online auctions. Bandannas are classic American cowboy gear, but look closely: The designs vary from Indian paisleys to old-fashioned florals. Since most bandannas cost no more than two dollars, a whole summer wardrobe can be stitched up for a song. What could be cooler than that?