You don't have to get Whiskey Tango Foxtrot or Oscar Mike Golf though, why not pick your own text speak or other acronyms? Here's the modern phonetic alphabet to give you some ideas:
For example you could get your favourite text speak acronym such as Lima Oscar Lima, or Bravo Romeo Bravo. Or your name: Zulu Echo November Alpha, or a surnames for a couple tying the knot: Whiskey Echo Sierra Tango.
Price is for one coaster, and they are made to order and printed on any colour glass you like. They are shown above on mint green and Neo Lavender.
Bravo Yankee Echo.