Tailor shops in Shanghai provide excellent bargains in hand made clothing.  Approximately 85% of the world's cashmere comes from China.  You will find lots of choices of excellent material at a bargain price.  Take along pictures of new fashions from magazines that you like and have it made using your fabric choice.  You will find many good Tailors in Shanghai.  Visit the tailor at the start of your trip.  This will give them time to finish the order before you leave.