How does he drink his scotch?
If with ice, go with a rocks glass and throw in a round ice maker.
If he drinks it neat or with a little water, go with the Glencarin glasses everyone is recommending. They are my go to. Another solid choice in this vein would be a copita nosing glass. They're basically a Glencairn on a stick.
Whatever you choose, Amazon or Waterford, a nice touch would be getting the glassware engraved.
Cool idea, although it's not for me.
Looks similar to the NEAT glass: http://www.theneatglass.com/
I use a nosing glass like this for all my spirits: https://www.amazon.com/dp/B0054D876C/
There is no way to dissipate ethanol vapors while concentrating aromas--they're both the same thing. So I want/need concentrated aromas to get the most out of a spirit, and the alcohol vapors don't bother me.
Good luck with your product, though! You might want to try it with whiskey and expand your target audience, at least as an alternative to the NEAT glass.
I use mine a lot, I use the Glencairn copitas...