Pins
Mewtwo "Dist 20 NJ" Pin

I have no idea what's going on with this pin. Apparently there was somsething in district 20 in New Jersey that warranted him getting a special pin. Where did this come from?
Pokemon 151 Badge

Each one of the first-gen Pokemon got one of these special badge pins. They don't come cheap.
Pokemon 2000 Mewtwo Pin

This was a tough buy - I remember a fierce auction for it, and I haven't seen another since. I surely don't remember one of these coming out when the Lugia movie hit the theaters.
Movie Promo Pin (round)

LARGE pin promoting Mewtwo Strikes Back's release on VHS.
Movie Promo pin (square)

This pin, unlike the previous, was for the original release. (I swear I've seen two different release dates - one for November 10th and one for the 12th. IMDB lists the 10th.)
Unknown pin #1

(If you know the origins of any of these pins, please let me know!)
Unknown #2

This was one of the single hardest pieces to get even a remotely decent shot of. I think I took 30 cracks at it before saying "F*** it" and going with this one.
Unknown #3

Unknown #4

Unknown #5 - mass quantity

The only thing I remember about this pin is splitting over 100 of them with a fellow Mewtwo fan a long time ago. I agreed to give up a good number of my half to Temple of Mewtwo board members in exchange for one of honestboris's WC2006 hats. That's what put us in contact again. Poor him.
Unknown #6
