This 'Harry Potter' sock advent calendar could free 24 house elves this Christmas

Free a house elf every day this Christmas, with this Harry Potter advent calendar filled with socks.
Perfect for wrenching poor ol' Dobby from the Malfoys, Target's new festive calendar contains 12 pairs of Harry Potter themed socks — that's 24 freed house elves, people.
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It's going for $15 in Target's online store, pretty decent for 12 pairs of socks. They feature design references to the Marauder's Ma