Looking For a Tutorial and/or Brush Set

I have a series of border brushes made by 77words that have that faded look around the corners. However, none of the borders fit for the size I need. I was wondering if there were other brush sets out there like that that could possibly have a 100px version of the brush in them or possibly a tutorial that could show me how to make a brush like that for my own use. Either one or both would be greatly appreciated. I recall at some point stumbling across a tutorial that explained how to make brushes like that but I can't for the life of me find it again.

Here's an example of the brushes I'm talking about so someone can point me in the proper direction:


This brush is 85px in size not the 100px I'd like to use.


Any help anyone can give me will be much appreciated.