How can I add a ticker to my Yahoo email?

I have searched thru all the Q %26amp; A in here. I copy and pasted the HTML line from Ticker Factory and added to my signature. Checked view html source and hit save. It doesn't work. Yahoo Photos doesn't work anymore. Any more ideas?
How can I add a ticker to my Yahoo email?
Stock Market Tickers and counters are no where in settings. Nor would they make it through the Yahoo Email Virus and code scanners.