I hardcoded the icon and link where I wanted it.
Grab the icons from here: http://www.feedicons.com/, and then set the link to http://dlcinteriordesign.com/blog/feed. Alternatively, you can link to specific category feeds eg: http://dlcinteriordesign.com/blog/category/WHATEVER-CATEGORY/feed
I’ve used punkyb9’s code and it’s working fine. However, I’d also like to disable the Category feeds, as I’ve hardcoded in the only feeds I want to use. I’d imagine that this is possible in a similar way to the comments, but I have no idea what code to use.