One of the easier, and least expensive Halloween Costumes you could make is Cousin It from the Addams Family. This costume is perfect for children or adults. The best part? Everything you need is located at your local Dollar Store!
All you need is a couple grass skirts, a pair of shades, and a bowler hat. Tie the grass skirts on the top of your head and cover with the bowler hat. Move the grass around your eyes to see and cover them with the shades and you are set!