Grown Up Chocolate is researching competitors in the adult chocolate market. Their main competitor, Chocablock Chocolates, allows customers to fully customize chocolate designs but does not offer packaged boxes. Other options researched for packaging materials include card, plastic, and metal boxes. Metal would be durable but difficult to print on, while card could be too weak. Initial ideas involve child-proof packaging that can only be opened with tools, with further development of ideas needed.