I have a soft spot for magic tricks where there's really not much of a trick and the performer does pretty much exactly what they say they're doing.

A beautiful example is Paul Gertner's "Unshuffled". https://www.youtube.com/watch?v=LlTF1Y4a888

UNSHUFFLED by Paul Gertner

YouTube
@rygorous he's just performing it backwards, speech and everything, and then they reverse the recording