FORGET costly costumes. Just in time for the holiday, MAC cosmetics is creating more than 25 theatrical looks, from a sexy swamp creature to a mortifying mummy (or they’ll work with your own vision).

Brooklynite Jenne Lombardo, 30, went sci-fi recently (right) at MAC in SoHo (113 Spring St.).

Makeup artist Bryan Campbell used aquadisiac diamond and gold makeup pigment and goldmine eye shadow to transform Lombardo into Mistress Aquina.

http://www.maccosmetics.com. From $40 for 40 minutes.