Don't discount curtain tie hardware for cabinet knobs. House parts LLC has a wonderful shell gilded curtain tie back which has a stunning shell in an antique gold finish that could be mounted on a dresser for a upscale beach cottage look. They sell for $24 dollars each. House Parts sells a number of lovely antique looking cabinet and drawer hardware perfect for any designer look.
This wall hook would look interesting mounted in the middle of a chest much like a key hold would be placed. The avenues of design can be opened up when you come across interesting over sized hardware in unlimited quantities which allows you to use them in a decorative way. They sell for $4.99 each.