A magic trick that’s been in my head and I think would be cool is to have an empty coffee cup on the table. You pour coffee, milk and sugar into it and Then mix it up with a spoon. when you turn it over black coffee comes out which you pour into a small glass. Then you tip it over second time and milk comes and finally the third time pouring out dry sugar, leaving you with an empty cup.
I don’t have a method for this yet.
I think the evaporation gimmick would help out in achieving this effect. I also think the spoon would be a good way to steal or add something into the cup.
If you have any ideas feel free to let me know!