Thanks to you both.
mchv2.0 provided a good solution. Using the code conversion and PayPal widget I have been able to use PollDaddy's star rating feature on my O365 website. However, while it does work well, it could also get quite expensive for even moderately large projects. At the "free" level PollDaddy only allows 10 items/polls to be rated with up to 200 responses per month. Above those numbers it costs $200 per month for unlimited polls and 5000 responses per month. That's just too rich for my blood running a humble hobby site.
I guess I will have to hunt around for code to do this sort of thing. Would this be best accomplished via the CSS Stylesheet or the PayPal widget?