Actually I've done that. In the 90ies it's just been trying and goofing around. Despite the fact everyone was into the stuff Image and Top Cow blew out, or they weren't, they've been learning japanese studying manga culture, I did my small cartoon about an office employee and his heavy pot addiction. Then I realized it basically was a b/w suited up Fred Flintstone, with a doobie in the corner of his mouth. That's when I sold my idea to the guy who made it The Office. Joking.
I also did a story about nuclear spring when, you know, almost everyone is dead and just few parts on earth remain to live on. Think there was something about a secret nazi organisation either, but I can't tell if they came from Antarctica or the moon. Story got pencilled by a friend, but he changed mind and the few panels were never continued. Guess I sold the idea to finland couple of years later.
Right now in the making is an autobiographical series of one-pages or 4-panels. I don't expect much, but maybe this time I'm in when it comes to a success.