take a melon baller and make several melon balls (or buy ready made frozen ones)
put into a large bowel
add a bottle or two - or more depending on amount of guests- of vodka blue, red, green, or other similar drink and put into fridge to cool.Add lemonade if required serve as guests arrive- delicious, but warn any drivers. Alternatively for a non alcohol one, add orange, apple juice and lemonade to e melon balls.