These wine glass markers (which are really any kind of drink markers) are very practical in the “you’ll never lose or confuse your drink” sense.
As an added bonus, they’re rewarding in the “you get to write/draw all over things that are normally off-limits, like fancy stemware and it’s really fun!” kind of way. You can go ahead and write out anything you’d like! No matter what it says, the regal silver and gold colors are sure to keep it classy.