I am all out of ideas for my parents'Christmas present but I have noticed when at my parents that despite a good selection of mugs, my mum always drinks from a china one that is badly chipped. One of those narrower fine china ones.
Now, they are terrible at throwing anything away so it may just be that, but in the absence of anything other ideas I'm going to assume she loves the mug and doesn't want to drink from non china ones. And Dad can have one too 
As I'm going for quality over quantity, where would you look for a really lovely, but still dishwasher proof, china mug?