Chiffon? In this economy? This week’s Paris Haute Couture shows swapped the usual piles of handmade lace and crystal-coated leather for materials often on shelves at the Dollar Store — or even better yet, Home Depot, like latex balloons, crumpled chicken wire, ripped denim, and clumps of very photogenic hay. The bargain-bin brilliance comes as U.S. inflation rates hit 4.2 percent, resulting in designer dresses that were once $500 to $2,000 now in the $10,000 range. When even the ultra-rich are hit with sticker shock, fashion has some work to do to survive disgruntled shoppers and skeptical critics. Apparently, that work begins at the Dollar Store. Inflation couture (literally) at Robert Wun in Paris Shutterstock The high-low moves took off at Robert Wun, a London-based couturier who augmen