Rhys Morgan 's YouTube tutorial has half views . Folds a piece of A4 paper vertically until it becomes very small . Simply pops the paper on the underside of the bottle and pops the cap off .
Rhys Morgan 's YouTube tutorial has more than 350,000 views . Folds a piece of A4 paper vertically until it becomes very small . Simply pops the paper on the underside of the bottle and pops the cap off .