http://www.uselesspickles.com/jsballs/ A ball physics simulator in Javascript.
http://www.piettes.com/fallingsandgame/index.html The Falling Sand game.
http://www.newscientist.com/article/dn8718 Scientists have attached a slime mold to a robot's sensors and motors.
http://www.rattysghost.com/deadrat/buriedrat/slime_mold_lore.html Slime molds in Nethack.