You can do chefs, grapes or wine. There are some really cute items out there to support these themes. You can get pictures, wall border, salt and pepper shakers and little knick knacks to support these themes. There are also really cute curtains available.
Kitchen wall themes are a way of decorating your walls by combining various decorations be it photos painting or hangings to create a specific "theme". This is a fun and easy way to bring some life to walls that may be less than interesting.