How can I apply tags in Mavericks recursively? Now that Mavericks removed that ugly colored bar and replaced it with a nice looking dot, I would like to use tags more.

Basically I have work files in different places that deal with different projects and I would like to apply the tag for all the files included in specific folders. The files may move around into new folders (outside of the original folder) in the future so I would like to apply a tag recursively to a folder so that I can find it easier if it gets moved out of its folder.
There's a CLI tag tool available via Macports/Homebrew: https://github.com/jdberry/tag

It doesn't seem to have a recursion option, however, I would imagine you could use this in conjunction with the standard UNIX 'find'. 

e.g.,
(from inside the directory you want to tag files in)

find . -exec tag --add tagname {} \;  -print