Contents:

ants: Anthill simulator -- births, deaths, food, etc.

astro: Digital astrophoto registration (alignment and addition)

cardation: Language flashcards for Android (http://strnbrg59.com/cardation.html)

elevators: Elevator simulator -- people getting on and off

fingers: Cello fingering

foosratings: Rating system for foosball and other sports

ngrams: Random language generator (http://strnbrg59.com/ngrams/frames.html)

puns: Shakespearean pun generator (http://strnbrg59.com/puns.html)

rubic: Algebraic groups of the Rubic Cube (plus a simulator using OpenGL)

turtle3d: 3D turtle graphics (http://strnbrg59.com/turtle3d.html)

utils: Miscellaneous utility library that's needed by most of the above.
       Lots of wheel-reinvention.  Not recommended.

wax: Chess engine