"Sharp This" is a custom-altered Sharpie that allows you to draw a line on anything or anyone, and then magically make it vanish. Draw on your own face, across your pants, on a spectator's sleeve, on the tablecloth, or even on a car or wall. Then instantly wave your hands and make the long black streak instantly disappear.
There is a secret telescoping "line" that retracts into the tip of this custom marker, and this makes "Sharp This" a HIGHLY VISUAL magic gag easy to perform. As an interlude between tricks, "Sharp This" is the perfect way to elicit laughter and even screams. This belongs in every performer's bag.