Looks like magic as they are stacked and especially when unstacked.
Fun to watch makes you want to buy a pro set of stacking cups.
![Confused :?](./images/smilies/icon_e_confused.gif)
![Surprised :o](./images/smilies/icon_e_surprised.gif)
![Laughing :lol:](./images/smilies/icon_lol.gif)
https://m.youtube.com/watch?v=SRr5gSVOybs
https://m.youtube.com/watch?v=LyU5v0ZYMjI
https://m.youtube.com/watch?v=VyyscuIq56I
https://youtu.be/LryrNls-7Ug