Metaphors are being used in a range of marketing applications including Point of Sale. See this innovative point of sale metaphor for Chupa Chups creating a garden of earthy delights in a supermarket. Sweets have been long thought to grow on trees and therefore this simple metaphor has deep significance.
There are also some fabulous ferris wheels and other variations such as flower pots that show how a range of emotional elements can be brought into a vital marketing area that currently lacks emotional relevant.
Also see Marketing Somatics and INSIDE STORY Knowledgement Management.