Although this polyJuice potion does NOT turn you into someone, it will make you think your someone else. Accio potion!For this to look like the polyJuice potion in the Harry Potter book, you have to layer the whole concoction. First the Kahlúa® to give the base, then the Vodka (whichever you prefer), then so forth. To simulate that the potion is bubbling, add the splash of coke at the top.