There's nothing more puzzling than a magic trick performed with everyday objects.

Here we see a pencil melt through a borrowed banknote.
This same effect was featured by David Copperfield in one of his television specials.

A pencil is seen to visibly penetrate a borrowed banknote, in two unbelievable demonstrations.
Remarkably, both banknote and pencil can be examined by the audience.

The video shows the effect.