Not yet. Wouldn't want my nose to be upturned in the event it ever happens.
Our upturned noses should have been intelligently designed . . .
You've got a better plan? Go for it! Only remember to leave intelligence and design out of it. It's been of little use so far, and we wouldn't want any of that stuff in there to mess things up.
Oh, I have lots of better ideas, but lack the magic powers necessary to enact them. It's too bad, really, that access to the drafting equipment isn't assigned by merit.
The fluid dynamics of the human nose are pretty complex as are the vast variety of odor sensors. Attempts to mimic same through intelligent design have not fared very well.