How to sell with gelato?

Could you please elaborate on the concept of "selling with gelato"? I'm intrigued by the idea of combining a sweet treat like gelato with a sales strategy. Is there a specific industry or product category where this concept is particularly effective? How does the inclusion of gelato enhance the selling process? Are there any successful examples or case studies that showcase the benefits of using gelato in sales? Furthermore, are there any potential challenges or drawbacks to this approach that sellers should be aware of? I'm eager to learn more about this unique and intriguing concept.