I just bought this pen from my school bookstore because it was yelling "SPIN ME".

This is the Pilot Dr.Grip "Center of Gravity".
It lacks the metal tip like normal Dr. Grips and has a shiny plastic tip instead. :banghead:
The CoG lies more-or-less on the ridge at the top end on the grip.
It's okay for a few basic tricks but not much else.
Let me know if you have seen it before or have one yourself! Especially if you have modded it... :grin:
ポール