A quick scan of sourceforge gives a bunch of projects whose name begins with tcl.  I'm going to trawl through them all.  Around a hundred.  Who knows what we'll find.

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'''Project front pages'''
   * http://tcl-dbi.sourceforge.net/
   * http://tcl-mccp.sourceforge.net/
   * http://tcl.sourceforge.net/
   * http://tcladdressbook.sourceforge.net/
   * http://tclads.sourceforge.net/
   * http://tclae.sourceforge.net/
   * http://tclce.sourceforge.net/
   * http://tclcryptography.sourceforge.net/
   * http://tcldbi.sourceforge.net/
   * http://tcldes.sourceforge.net/
   * http://tcldp.sourceforge.net/
   * http://tcldrop.sourceforge.net/
   * http://tclhtml.sourceforge.net/
   * http://tclhttp1-1.sourceforge.net/
   * http://tclhttpd.sourceforge.net/
   * http://tclines.sourceforge.net/
   * http://tclish.sourceforge.net/
   * http://tcljava.sourceforge.net/
   * http://tclmagick.sourceforge.net/
   * http://tclmml.sourceforge.net/
   * http://tclpad.sourceforge.net/
   * http://tclplugin.sourceforge.net/
   * http://tclpro.sourceforge.net/
   * http://tclral.sourceforge.net/
   * http://tclrar.sourceforge.net/
   * http://tclreadline.sourceforge.net/
   * http://tclrfb.sourceforge.net/
   * http://tclscript.sourceforge.net/
   * http://tclserv.sourceforge.net/
   * http://tclshout.sourceforge.net/
   * http://tclsoap.sourceforge.net/
   * http://tclspeech.sourceforge.net/
   * http://tclspice.sourceforge.net/
   * http://tcltexed.sourceforge.net/
   * http://tcltextedit.sourceforge.net/
   * http://tcltk.sourceforge.net/
   * http://tcltkaqua.sourceforge.net/
   * http://tcltrf.sourceforge.net/