maybe just change the chat so typo's show...? i honestly would rather see my mistakes rather than arrr ...it's annoying!
when you're typing fast because you're trying to get a chat in while you're sailing, or before you die, or ...if you're not a typist (or even if you are) then you make a mistake, and instead you say arrr, now you're typing it AGAIN! Yarrr!
but, if not... then:
~~wave (waving in whisper or chat when your friend can't see you)
~~waves (same)
ty's (multiple thank yous instead of saying ty ty ty)
ty's! (same)
wb's (same except welcome back)
wb's! (same)
Horace (name)
Bitte Aufdet (name)
Silverlace (name)
TIA
there will be more!
Also, what Pumpkin said above ...really, a custom name should approved automatically. (/shrug)