Let's see, I have these private addons that are worth anything:
Rogue Knife - Can cloak user but makes them slower, like WOW
RYNO V
AccessLyrics - /AccessLyrics <name> <band> <interval of milliseconds between saying each line into chat>
Walrus - Chatbot with walrus head
Day and Night - Adds day and night with OnDay and OnNight events
Day and Night Map - Moving sun, with changing sun colors
Craftsmen Zombies
InvAv - Inverts my avatar every time I chat
ClientChat - Has many client sided chat mods; color changing, calculator, scrambler, backwards talk, and so on.
^Won that in a bet C:
That's all I can think of right now. Now am I a forgeter of the world?