Would help if you could give us an idea of the kind of thing you're looking for. All I can suggest is the mouse and keyboard I use.
Which is a Corsair Vengeance K70 with brown switches, really nice keyboard. It's really tactile, the keys feel good to press, it looks really nice and to be honest I find it quite easy to clean as well.
The mouse I use is new Logitech G502 Proteus Core, which I couldn't recommend enough. Fantastic mouse. Extremely smooth, excellent tracking so far I haven't found anything I can find that faults it.