Every time Kate wears a Zara or Topshop dress, fans rush to buy their very own, and the 3-month old prince is causing a similar frenzy in the princess's hometown of Bucklebury.
Middleton family friend Lynda Tillotson, who runs L Interiors, tells PEOPLE she's almost sold out of a commemorative mug she created to mark the birth of the royal heir.
"Out of an original run of 500 mugs, we now only have around 40 left, which is a major thing for a small country shop," she says.
The mug, which was handmade in England and costs about $32, features a crowned acorn with a banner carrying the words "From Small Acorns" and is marked on the side with the year, 2013.
"We created them specifically for 2013 to cover the birth and the christening, so we won't be having any more made ever again," Tillotson says.
"The acorn is a reference to a corridor of oak trees that were planted in Bucklebury to mark a visit of Elizabeth I to the village. More were later planted to mark a visit of Elizabeth II. So the acorn symbol has royal connections."
And that connection may even extend to those using the mug. With the Middletons living just around the corner from Tillotson's store, there's a good chance that some royal purse strings may have been loosened to nab a few of those collectables.
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