Substitutes:

• Vodka: If you don't have Vodka on hand, gin can be a good substitute. It will add a more botanical flavor to the drink. Tequila could also work if you're looking for a kick.
• Club Soda: You can use carbonated water like seltzer or sparkling water. Tonic water could also be used, but it will add sweetness and slight bitterness to the drink.
• Lime Wedge: Lemon can be used instead of lime for a different citrus note. Or try a cucumber slice for a refreshing twist.

Making a Pitcher:

• Scale: To make a pitcher that serves 8, you'll need 16 oz of Vodka and 32 to 48 oz of club soda.
• Mix: In a large pitcher, combine the vodka and club soda. Stir well.
• Serve: Pour the mixture into ice-filled highball glasses, garnish with a lime wedge, and serve immediately.

Making it Non-Alcoholic:

• Vodka Substitute: Use a non-alcoholic vodka substitute; several brands are available that mimic the taste of Vodka without the alcohol.
• Proceed As Usual: Use the non-alcoholic vodka substitute instead of regular Vodka, follow the original steps, and enjoy a non-alcoholic version.

Making it Vegan:

• Check Your Vodka: Most vodkas are naturally vegan, but some brands may use animal products in their production process. Check the brand's website or contact them directly to make sure.
• Proceed As Usual: Once you've confirmed your Vodka is vegan-friendly, follow the original steps to enjoy a refreshing vegan vodka soda.