I couldn't think of a nice Halloween special outfit but this is just what I have in mind. Feralina in his Pink Candy Witch Outfit, he'll offer you lots of candies and sweets and trust me those candies ain't curse or poison.

Outfit Description
His outfit features different shades of pink. He wears a pink pointy hat with a ball at the end ressembling a peppermint swirl candy in pink and white coloration, he wears pink sweetheart scoop tube short dress with a pleated short skirt and a dark pink corset, light pink detached cloth sleeves on the upper arms, and matching pink gloves, pink and white striped thigh high stockings and matching pink ankle length heeled boots with dark pink straps with gray buckles on the ankles.