A Snidget is a Widget made with Snit.
SRIV History of the word Snidgit: One of the 2004 Tcl Conference attendees (should we name him?) made a slip-up while asking a question about Snit widgets. After a good laugh, the name stuck throughout the discussions for the remainder of the conference.
Should we name John Harris? Nah .. I don't think so :-) stevel
Some snidgets are described in the wiki:
You might also be interested in the discussion of A New Megawidget Library.