Ideas For A Costume For A Mad Hatters Tea Party

im hosting a mad hatters tea party, and i have no idea what to go as. I cant be; the white rabbit, the mad hatter, the queen of hearts or alice, because my friends are very arsey and have claimed these ideas. it doesn't necessarily have to be an alice in wonderland character, but obviously it has to be a bit mad. I am female, and i don't want anything frumpy. thanks (: