The Sharpie Liquid Pencil Gives You Three Days To Change Your Mind

Sharpie has something new: an erasable ink pen dubbed the Liquid Pencil. The retractable pen uses a sort of liquid graphite that only becomes permanent after being exposed to air for three days. Until then, a standard erase will remove the ink. Clever. Expect the pen in stores this fall. [Sharpie blog via Wired]