2 tubes (.68 ounces) red decorating gel
Lemonade mix (to make 2 quarts)
1/4 cup sugar
1 teaspoon meringue powder
2 liters seltzer
Green and yellow food coloring
Squeeze drops of red gel on the outside of clear glasses and serving containers. Let dry, about 10 minutes.
Combine lemonade mix, sugar and meringue powder (this makes the drink frothy) in a bowl. Slowly pour in seltzer, whisking continually, until fully blended.
Stir in 10 drops of green food coloring and 4 drops of yellow food coloring.
Pour the punch into serving containers.