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.
Tito’s Handmade Vodka is America's Original Craft Vodka produced in Austin, Texas. We make it in batches, use old-fashioned pot stills, and taste-test every batch.