I have a library of reusable and modular transforms.
They are under LGPL license.
They are meant to be used either stand-alone, or imported, or in
pipelines (e.g. in Cocoon).
Some process or generate XML Schemas, of XHTML, some are generic, e.g.
replace all attributes by elements. Some other are design patterns.
Some necessitate Saxon, some use XSLT 2.0 draft.

They are also on sourceforge.net on the CVS :
http://sourceforge.net/projects/wwbota