The outdoor activity is running from 6 May to 19 May and forms part of a broader £3m marketing campaign to support the Starburst brand extension.
The ads inlcude images of a pear creeping out from behind a screen after previously being dressed as a strawberry. They will run across more than 1,600 locations in the UK, and form part of Starburst’s biggest brand activation to date.
Wrigley launched Starburst Flavour Morphs at the start of the year, and support has included TV and in-store activity.
Its launch was followed by a similar innovation from Perfetti Van Melle-owned Fruitella with Fruitella Magics, which also change flavour when chewed.