Hi,
you might be interested in some projects I was doing recently:
Lunar Lander (in German) http://www.squeakland.org/project.jsp?http://www.emergent.de/pub/ smalltalk/squeak/projects/mondlandung.pr
Iterated function systems: Fractal Fern http://www.squeakland.org/project.jsp?http://www.emergent.de/pub/ smalltalk/squeak/projects/fractal_fern.pr
Finite State Automaton: http://www.squeakland.org/project.jsp?http://www.emergent.de/pub/ smalltalk/squeak/projects/fsaNice.pr
Have fun,
Markus