By Lucy Addicott Due to popular demand, getting your hands on the viral Stanley Quencher cup can be hard, especially if you have your heart set on a particular colour. The TikTok famous drinking tumbler has over 4.5 billion video views on the platform and repeatedly sells out – at one point it even had a waitlist of 150,000 people. More than just a water bottle, the aesthetically pleasing tumbler is a must-have accessory at this point, with celebrities such as Adele and Molly-Mae Hauge having been spotted sipping from theirs. While the latest colourways are currently sold-out, Adele’s Rose Qua…