London accessories designer Anya Hindmarch has made a killing from her clever clutches that riff off consumer-pop themes — smiley faces, bags of chips and, most famously, Tony the Tiger, of children’s cereal fame. She’s selling these wily wares, along with her regular fine leather goods for fall, in Mini-Mart, a shop-in-her-own-shop in Mayfair. Lasting three months, Mini-Mart will also serve 99 flavors of ice cream because, well, the address is 99 Mount Street — and nothing screams pop like ice cream.