Leave a list of fictional characters in your journal that you would love to get a message from. It is your friend-list's mission, should they choose to accept it, to write you an in-character "letter" from a character on that list. Then they post their own list in their journal and the process continues! (Feel free to post anonymously too.)
Feel free to comment on each other's letters.
(1) Radek Zelenka (SGA) (2) Rodney McKay (SGA) (3) Major Lorne (SGA) (4) Daniel Jackson (SG1) (5) Larry (Numb3rs) (6) Capt Jack (Dr. Who) (7) Julian Bashir (DS9) (8) Jayne (Firefly) (9) Alec (Dark Angel) (10) Abby (NCIS) (11) Josh Lyman (West Wing) (12) Vince Tyler (QAF UK)