SharePoint MVP Kanwal Khipple of SharePoint Buzz released a very cool Halloween theme for SharePoint 2010.
My Recent Documents WebPart
This Webpart for Sharepoint 2010 is developed for users that need help finding their documents in SharePoint.
A simple SharePoint 2010 workflow activity / workflow condition to check whether the user initiating the workflow is a member of a specified audience. Farm-level .wsp solution, written in C#. Once installed, the workflow activity can be used in SharePoint Designer 2010
SharePoint Desktop is a explorer-like webpart that makes it possible to drag and drop items (documents and folders), copy and paste items and explore all SharePoint document libraries in 1 place.