Labs for Design & Business

After having discussion about why some products are food shaped, my Japanese friend introduced me a website where a Japanese designer keeps posting his/her own design prototypes (Prototype 1000).

In fact, there are many products whose actual function is not matched with the function inferred from its form. Examples include donut shaped tape (from 3M), burger shaped/fries shaped/coke shaped USB drive (from Burger King), and chocolate shaped mirror (from Meiji).

Why do companies create and sell these products? Do consumers like a product when there is a gap between the actual function and the inferred function? If not, do consumers want to be shown different from others by having those products? If not… why? I want to identify the benefit of form-function mismatch, which has not been discussed in the past.