"Because designers are jumping from one house to another so quickly, we wax nostalgic for collections that are not that old, " said Cameron Silver, co-owner of the Los Angeles vintage store Decades.

WSJ: The Fashion Piece That Got Away

Mr Cameron's six-year-old daughter Nancy was given a silver charm necklace, and his son Elwen, four, was a given a DC United football shirt.

BBC: David Cameron presents Barack Obama with graffiti art

Mr Cameron gave the family a large tapestry with an eagle and American flag design by the Rug Company, silver bracelets for daughters Sasha and Malia, and a "bone-shaped chew toy with United Kingdom flag", presumably for Bo, the family's four-year-old dog.

BBC: China tea set and brooch among royals' gifts to Obamas