Christmas gift from my boss

I'm totally fine with someone telling me "Merry Christmas", "Happy Holidays", "Blessed Winter Solstice" or whatever they wish, if the good wishes come accompanied with a nice present. :) But there are apparently those who are easily offended (though I expect they're far, far fewer than the ACLU makes us think.) So what's a boss to do? He's got about twenty techs and grad students and postdocs in his lab, from many different countries and religious backgrounds, and he wants to do something nice for all of them at this time of year by giving each a good bottle of wine. What to write on the thoughtful post-it note attached to each gift?