Mark Campbell wrote and posted (on Coding4Fun) a sweet little demonstration application to build your own custom XSLT tool. I personally like it as a free utility to learn how XSLT works, but for you really smart people, you can follow the article and build and customize it (if you’d like) yourself. He was kind enough to give you both the C# and the VB.NET source code.
If you have the time and want to get a better understanding of XSLT by building your own tool, check it out here: http://msdn.microsoft.com/coding4fun/xmlforfun/XSLT_Former/default.aspx.
~ Robert Shelton