1/2 cup of vodka will do
First I have to say that 6oz's of vodka in a single drink is waaaaay to strong for me. I made it with 3 and it still has kick! The color really could be called ecto green, it's most cool for Halloween. I didn't have any fresh lemons or lime but I did add some bottled lime juice which gave it the cloudy look. I used Splenda in place of sugar. Good fun and easy to make!