The Signs as Things in Harry Potter

Aries: the shrieking shack

Taurus: a sneakoskope

Gemini: polyjuice potion

Cancer: Molly Weasley's knitted jumpers

Leo: the sorting hat

Virgo: the time-turner

Libra: howlers

Scorpio: the pensieve

Sagittarius: nimbus 2001

Capricorn: the marauder's map

Aquarius: Hermione's beaded purse

Pisces: a pair of spectrespecs