thank you for the explanation but maybe it's because I'm blonde...I'm not quite understanding...
if the cup is sitting on the table, do you cut it horizontally, as in cut the top part off, of do you cut it from top to bottom?
if it's horizontally then i'm assuming you cut the bottom off (like you already stated) and float it..but then it would look like a big O shape, so then do you cut it again?
if it's vertical, the you cut it from top to bottom and cut the bottom off ( then float it on top where it sort of looks like a cave shape? or as you said, like an upside down U? if that's the case then where is there a place to make bubbles, or does he make them under the cave, in the open space.
k, i am probably being way too complicated...just want to do it right.