Discommon Lowball 2 Glass
You're not going to drink top-shelf wine from a red plastic cup. Same goes for whiskey. If you like the good stuff, you'll need a proper vessel like this tumbler ($250).
It's ludicrously priced, yes, but the high-grade aluminum will never contaminate your spirits, the intricate machining ensures it sits perfectly in your hand, and the hourglass shape supposedly extracts the optimal nose from every sip.