Personally, I'm going to begin by creating my own routine and use G-Sharp to show (under the guise of "teaching") a few optical effects like the old rubber pencil illusion and the expanding and shrinking horizontal pen. Turning the topic to gravity, perform the old magnetic pencil effect. Hold G-Sharp in your right-hand's clenched fist. Make sure both ends are clearly visible. Your left-hand is placed tightly around your right wrist. Open your fist, and the G-Sharp violates the laws of gravity! The extended index-finger does the honors, although on occasion, I have also used my left-thumb as well. In an original twist, I always put my right-thumb on the left-tip of the Sharpie claiming a fake balance point. When it is slowly released as well, it's a surprisingly strong redirection of attention moment for such an old, simple stunt. All three illusions work and look GREAT with G-Sharp!!! Now is the perfect time to do any of Steve's anti-gravity visuals. I find that by gently striking the cap end before G-Sharp "levitates" off my finger, it focuses attention on that end. When it then slowly, eerily rises up, I momentarily rub my fingertips together as if some static energy is pushing the marker upwards. Lastly, I stop and it just floats up, all the work of a few very magical moments. To end, I shake the person's hand, ask that they leave their hand suspended in mid-air, in that exact position (as I initially contact their fingertip for stability), and then suspend the G-Sharp on their wrist (remembering to work the cold end). It looks great! I'm looking to hear "Hey, you said these were illusions, but this is really happening!"
This is a "doer" and going right into my pocket.