ClipboardCat

ClipboardCat allows you to quickly access your clipboard history in your menubar, each item will have a shortcode so press 'Command v' as normal for the last copied item or 'Command 2' and then 'Command v' for the second last item.

ClipboardCat saves all of your clipboard history in your menubar, and allows you to quickly access them using the commands listed above, you can also click on the item you want to paste and then press 'Command v'.