I've been working on a tool to speed up texturing workflow for crowds in Maya.
It's early stages, but I intend to use this tool to set the Home team and Away team for a stadium crowd setup.
It can be used for many teams in lots of different leagues in Europe. That's hundreds of teams and I'm not finished populating the texture files and thumbnails yet, but here is a video to show its funcionality so far.
and in Houdini