Doll in Yahoo Signature
Select Mail Options from the Yahoo! Mail navigation bar
Follow the Signature link (under Personalization).
Click Color and Graphics
Check "Add signatures to all outgoing messages"
Check "View HTML Source".
Paste the desired Doll Palace Doll Code.
Uncheck "View HTML Source" (You should see the selected doll in signature area now)
Yahoo! Mail will now append your signature by default,
but you can override this setting for individual messages by un-checking Use my signature on the message composition screen.
Step 6 - Sending a message.
Select "Compose" from the Yahoo! Mail toolbar.
Make sure "Use my signature" is checked.
Follow the "Color and Graphics" link right at the top of the Yahoo! Mail composition page. Use the rich text editor that appears to compose your formatted message and send it as usual with the Send button.