I got one too. That is a gift you get every year when you sign up to be in the Tito's Taster Club. they send a different gift out each year at Christmas to all who signed up for their club. I think last year we got coasters.
There was a card that came with it thanking all the tasters.
Distilled and bottled in Austin, Texas since the mid-nineties, Tito’s comes in a standard bottle, with a simple paper label, so all you pay for is the…