We visited a bit of IDEO where they invent toys, and they told us about products. Products they told us have to be “shelf demonstrable” (an alternate term I heard later is “shelf evident” which you have to say like Sean Connery saying “self evident”). This is the idea that regardless of what your toy – your product – does, you have 15 seconds for it to tell its story to the customer, before they even touch it. This doesn’t need to be every feature of the product, and it doesn’t even need to be accurate. But in 15 seconds, you need to communicate that combination of usefulness and desire that makes a potential customer walk to the shelf, pick up the product, handle it, and put it in their basket.