Rosemary-Infused Lemonade

2 sprigs fresh rosemary, plus more for serving (optional)
kosher salt
1 cup fresh lemon juice, or to taste
1/2 cup agave nectar
lemon slices, for serving

Bring 6 cups water to a boil in a saucepan. Remove from the heat and add the rosemary and a pinch of salt, Cover and steep, 30 minutes. Strain into a pitcher and cool to room temperature. Stir the lemon juice, agave nectar and cold water into the pitcher. Add more lemon juice or agave nectar to taste. Serve over ice with rosemary and/or lemon slices, if desired.

And another fun drink, though I don't know any recipes off hand, is one with dry ice in it, and served with multiple straws so it can be shared, depending on what kind of group you are with.