Stones will be handled differently, we used to have stones, you could create stones in the create page until they broke things, they work in a similar way to User Defined flavours, for example you could create:
Tell me to bugger off if I’m complicating it!
Is the aim to only have main categories? Would a further break down into subcategories be viable/advantageous?
Candy will be full of fruity candy. So for my specialty I think Candy Bars would be useful. I bet we could fill up that category with chocolatey, gooey, crunchy confections.
Edit: I see chocolates at the bottom. Not sure a candy bar falls into that one. I love me some Payday bars!