According to guys and ghouls at New York Costumes in the East Village:
“Miley Cyrus and a wrecking ball.” — Kendall
“One of you is a shark and one of you is a tornado. If the night goes well, you end up with a Sharknado.” — Jonathan
“Baby North West and baby Prince George.” — T.M.
“Amanda Bynes and a psychiatrist.” — Kendall
“A national park ranger and a closed sign.” — Marshall