My absolute favorite "magician" was a card manipulator who demonstrated how several of the standard card tricks worked. Even showing the trick from the side and also from behind (his back to the audience so you see how he's doing it) the technical skill was amazing. It motivated me to learn prestidigitation. It turns out that my fingers are too short to do card tricks with standard playing cards (also too short for the fretboard of a classical guitar - I have to stick to acoustics & electrics).