Pen and Tell (Zanadu)

Description

Draw a line with this pen and watch it quickly vanish.

Great to use as a gag where you apparently put a pen mark on a spectator’s sleeve and then, just before they start to scream and inflict bodily harm to you, the ink mark vanishes in an instant!

Can also be used as a rising or jumping pen.

This does not use the old vanishing ink method that involves a liquid.