did with the second hand: half black and half red! It's amazing how many contemporary watches have hands that "get lost" on the dial. The worst combination being flat mirror finished metal hands on a similarly colored dial covered with an uncoated flat crystal. Most of the time one can hardly read the time of day on these things and, worst of all, if you try to angle the plane of the flat metal hands just right to reflect ambient light so you can read the time, then you have the glare off of the flat crystal making it even MORE difficult to see the hands!
No law says one can't make Franken watches when the mood strikes. Some of them look good enough to make me wonder why Timex did not mass produce them! The nice thing about a Franken watch is that you can think of it as a personal EXTREMELY limited edition of watches you're producing that contains only a single timepiece (at least until the copy cats out there start ripping off your design!). If it was numbered on the case back it would be designated as "001/001"! Now THAT certainly makes it truly "rare".
Good luck with it.