watermelon lemonade

[greencow]

a few years ago, my work friends and i would have lunch at "the country club" (actually it is open to the public but that's what it's called) and in the summer we'd drink watermelon lemonade spiked with vodka. i've been wanting to recreate this, and see many different variations but have no idea what is a good one....

does anyone have a recipe for watermelon lemonade that they like and care to share?

thanks!