I did this once on a message board, and it was pretty fun. Someone started a story with a ten word line,
and we each added ten more words as we went along. I'll get it started. Use whatever AA you like.

　 ∧＿∧ 　　／￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣
　（　・∀・）＜ Once upon a time, this guy was watching TV, when...
　（　　　　） 　＼＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿
　｜ ｜　|
　（_＿）＿）

　　　　　　　∧∧　　　
　　　　 　 ／ 中＼　　
　　 ζ　 （ ；｀ハ´）　　♪the opium started giving him
　　 ┗─⊂　Ｕ　）　　　　a reeeeeal nice trip, because♪
　　　　(⌒__,,,（⌒）　　　

( ﾟ ヮ・) I couldn't find a decent way to play chess online.