Classic & Iconic:
* Labyrinth: Dress as Sarah or Jareth, the Goblin King, and bring your own labyrinth!
* Lady Gaga: Embrace her iconic looks, from meat dress to disco ball.
* Little Red Riding Hood: Go for a traditional or edgy interpretation.
* Lumberjack: Embrace the rugged outdoorsman style, complete with a lumberjack shirt, hat, and axe.
Literary & Fictional:
* Lestat de Lioncourt: From Anne Rice's "Interview with a Vampire."
* Lucy Pevensie: The brave and kindhearted protagonist from Narnia.
* Luna Lovegood: The quirky and eccentric witch from Harry Potter.
* Leeloo: The genetically engineered warrior from "The Fifth Element."
Historical:
* Leonardo da Vinci: Embrace the Renaissance era and showcase your artistic side.
* Louis XIV: The "Sun King" of France, known for his grandeur and extravagance.
* Lady Macbeth: The ambitious and ruthless queen from Shakespeare's "Macbeth."
Funny & Whimsical:
* Lettuce: Dress in a green costume and carry around a head of lettuce.
* Lego Man: Embrace the blocky world of Lego with a simple costume.
* Lobster: Dress in a red costume and carry a big lobster claw.
* Lost Soul: Wear a dark costume and wander aimlessly, moaning about being lost.
Scary & Spooky:
* Leviathan: Dress as a monstrous sea creature, complete with tentacles and scales.
* Lobotomized Patient: Embrace the eerie, unsettling look of a lobotomized person.
* Lady of the Lake: A mystical and enchanting figure from Arthurian legend.
* Lurch: The tall, lanky butler from the Addams Family.
Bonus:
* "L" is for Love: Create a couple's costume with a theme around the letter "L" (like "Lovebirds," "Lover Boy," "Lover Girl").
This is just a starting point. Get creative and personalize your costume to make it unique and fun!