38 Iconic Duo Halloween Costumes

This duo costume goes out to one of our favorite onscreen sibling pairs: David and Alexis Rose from "Schitt's Creek." Whoever's dressing as Alexis must say "Ew, David!" at least 10 times at the Halloween party.

• What to wear for Alexis: A breezy boho dress with heeled booties and lots of accessories. Or you can re-create the pink dress she wore for her "A Little Bit Alexis" performance.
• What to wear for David: A cool patterned sweater, jeans, and high-top sneakers.