Prezi offers lots of templates that are built into their website for free. You can start with a blank canvas or use a template. What if you want to use a template but you don't want to use any of those templates?
Prezibase.com is a website that designs and creates beautiful templates for you to use on prezi. They feature free as well as paid templates on their website. Scroll down to check out some of the free prezi templates that are available: