Enter FaceYourManga.com. It’s a simple web-application that lets you create your cartoon avatars for free. You can choose from a variety of features — face, nose, mouth, hair, beard, glasses, even tattoos and piercing!
Tip: If you don’t want to share your email with web-applications that claims to share download links via email, you can use 10 Minute Mail. Once you enter this site, it gives you a unique email ID valid for only 10 minutes. It is accessible only by you. Mails are automatically loaded. So you don’t need to refresh the page. If you don’t receive the mail within 10 minutes, you can extend the time for another 10 minutes.