Fill a round Lipton iced tea glass (like this one: http://www.labelglass.com/media/liptoniceschw086.JPG) with cold iced tea for about 2/3. Fill a shooter glass with Johnnie Walker Black Label and carefully place the shooter glass inside the iced tea glass so that the iced tea doesn't mix with the scotch.

As you drink it, the shooter glass will tip over and start to mix with the tea to give a different taste sensation with each sip!

Tip: Make sure that you don't put too much iced tea in the glass, to prevent it from spilling into the shooter glass!