Disappearing trick :O

I find that disappearing tricks are really easy to do... it's the reappearing part that gets me. Think about it, oh look here's an apple *eats* woaaah disappeared D:... now how do i get it back =\. This is true for people too, they can disappear if you want them to, but whether they will reappear afterwards is the real problem. Regurgitated apples don't look good, nor will they make others amazed, throwing people away then asking for them to come back is similar, it isn't good, and the result will not be pretty.