use lubricant on entire inside surface of cup... then freeze the cup (really fucking cold)... pour in water, turn and leave a few moments. it will form a small layer of ice thick enough to hold for about 30 seconds.
dunno if thats how he did it, but that is how it can be done.
use lubricant on entire inside surface of cup... then freeze the cup (really fucking cold)... pour in water, turn and leave a few moments. it will form a small layer of ice thick enough to hold for about 30 seconds.
dunno if thats how he did it, but that is how it can be done.