Aug162012 Free Lemonade at Pretzelmaker on August 20! Free Lemonade at Pretzelmaker on August 20! Celebrate National Lemonade Day on August 20! (We have a national lemonade day?) Anyway, celebrate with a free sample size lemonade at participating Pretzelmaker locations. Click here to see all the details and here to find a store near you. Join the Discussion Share this Post 2 Related Deals Learn to Shop for Free with Coupons Ling Ling Potstickers, Only $1.39 at Whole Foods! Dr. Praeger’s Broccoli Pancakes, Only $1.39 at Whole Foods! Anonymous Love some lemonade in the summer. and free makes it better!