I looked at my collection, and this is what i came up with

NF        NO FEAR
BBBB       BUGS BUNNY BIRTHDAY BASH
FK        FREDDY KRUEGER
TMNT    TEENAGE MUTANT NINJA TURTLES
1D4      INDEPENDENCE DAY 4TH JULY
ST25TH   STAR TREK 25TH DATA REAST
STNG      STAR TREK NEXT GENERATION
SJ         SPACE JAM
GZ        GODZILLA
BK2000     BLACK KNIGHT 2000
LAH       LAST ACTION HERO
TOM      THEATRE OF MAGIC
JD         JUDGE DREDD
IJ          INDIANNA JONES
FRANKY    FRANKENSTEIN
TFTC       TALES FROM THE CRYPT
VND         VIPER NIGHT DRIVIN
SWT       STAR WARS TRILOGY
XF        X-FILES
ST        STARSHIP TROOPERS
RR        ROYAL RUMBLE
BF        BATMAN FOREVER
DH        DIRTY HARRY

Theres probably 8 million more, but its a start.
I reckon whenever we talk about pins, and use abbreviations, we shld put the full name next to it to make it easier for everyone.