The iconic Barbie brand, represented by the beloved blond bombshell doll, is celebrating her 65th birthday, and to mark the occasion is teaming up with Stanley for a hot new collection of eight Barbie-branded Stanley tumblers, which will drop on the 16th of September. Barbie X Stanley Cup are also holding a series of “Legend Pop-Ups” in cities across the UK and US. These are immersive pop-up events will include activities, phot ops, gifting, and of…