10 Small Details You Only Notice Rewatching How I Met Your Mother
5. Zoey's Necklace
Zoey, one of Ted's many ex-girlfriends, plays a key role throughout Season 6. While she and Ted begin as enemies fighting over whether Goliath National Bank should destroy the old building The Arcadian to make way for Ted's new GNB HQ, they eventually become friends, then a couple, all thanks to Lily.
In the episode Blitzgiving, Lily goes over to give Zoey a piece of her mind, but Zoey recognizes Lily from her artwork, having purchased some of her paintings online and the pair become friends, with Lily forgetting about Ted entirely.
In a later episode, Zoey wears the same wishbone necklace Lily wore in the show's pilot. Perhaps Zoey bought the necklace off of lilyandmarshallselltheirstuff.com, and discovered her artwork from there.
Regardless, the necklace is a nice touch, and proves that the prop designer listened to the Season 6 episode Garbage Island's message about recycling.