Posted a series of "Character Development" comic strips recently where Foamy tweaks a potential characters appearance over a few episodes. (It's generally what I do when I add a character, but tend to just keep the comics in a sketchbook, unpublished. This time I'd figure I'd share the process a bit. So those interested, have a look, but the image below will probably be the final version of the new character... who I have no idea what to do with.
For me, I tend to have to draw a bunch of comics where the characters interact with each other prior to tossing them in a cartoon, so those will be posted over time, and hopefully she'll make her way into the series, or maybe be in a different series. Who knows.