Wonderteq Grand Slam Reposado Tequila The fun and flavor of baseball in a bottle! Wonderteq Grand Slam Reposado Tequila is aged for 8 months in whiskey barrels which give it a great sweet, smooth taste that you'll love. Celebrate your love for baseball with Wonderteq Grand Slam Reposado Tequila. From the creators of the World's First Designer Reposado Tequilas comes this award winning tequila that is literally shaped like a baseball bat.