So I didn't buy the headphones (yet)...

But I did buy this thing (at the MoMa store). I'm giving it a 4-star rating. It may seem absurd to pay $38 for an apple slicer, even one that has a beautiful design perfectly merging form and function. But if you're like me and you want to eat apples but can't stand to just bite into them whole and are sick of chopping through them with one of these, you might love this. It slices the apple cleanly and easily into a spiral. As it goes around, it's embedded in the apple, and it seals the uneaten part so it doesn't turn brown or dry out. You can start with a nice, big apple and just eat however much you want. No conflict between waste and overeating or fear of buying overly large apples.