Back in the old days (I say "old days", but it was pretty much 2008 and 2009), I was very heavily involved with the Chipmunk fandom, and wrote a number of fanfics as well, all mostly related to the 80s cartoon series, since that's the one I grew up with.
So, here's an index of the Chipmunk fanfics I've written, and I tried to make character development a point in my fics:
http://simanetteworld.webs.com/fanfiction.htm