You can create simple online polls with Vorbeo.
Fill in all the boxes for information and choose your colours, then copy and paste the code into your blog post.
Your voters get to have their say and then see how others have voted (on the Vorbeo website).
There doesn’t appear to be any way of viewing the results of the poll without voting or copying the link from the code and pasting into your browser. It is however a really simple way of creating a poll.