Ok I see what you mean Jordan! I’m assuming you’re looking at Gallio template and want to replace some of those. The icons I used are from http://www.entypo.com/. It’s a great, free, icon set. You will have to download the set and recreate those icons. It would probably be best to do all 6 so its consistent.
In whatever software you are using to export your files I recommend slicing up the images so they are all the same height and width with the icon centered inside. This will make it a lot easier to style (you won’t have to have different padding values for each icon because each icon would have different heights - in this case they are all the same height so one consistent padding value would do!)
Like so:
Does this help?