[Luke nods, waiting and not noticing that, as he did so, he ends up flexing his right hand and rubbing his fingertips together, distantly caught in some morbid fascination over how it feels - or doesn't.]

I'd let you keep it if the functions weren't as affected as they are, taking just one of them out. [Taking it back, he slots it back in with more practiced than true ease, smiling wryly.] But I can do that, at least. Or temporarily hand it over, whenever you have equipment... unless it means taking it completely apart.

And if you or someone else manages to duplicate it, maybe it'll be of use to more people, too.