jQuery Pin It Button For Images is the easiest way of showing up a Pin It button over the images on mouse hover in WordPress. All you need to do is install and activate the plugin and it automatically displays a Pin-It button when anyone hovers the mouse pointer over images present in your blog posts and pages etc.
Social Toolbar is a beautiful and highly customizable toolbar plugin that provides you with color selection, social network icons, recent tweet and share buttons in your website footer.
Renaming Pinterest board is not a good idea. As soon as you rename any Pinterest board the associated web address (permalink) also get changed and all those shared links on different social networks like Facebook, Twitter etc and also Google archives redirects the user to Error 404 page. Not only this much but all those Facebook likes again start from zero.