Randomness in animation
http://srufaculty.sru.edu/david.dailey/svg/SVGOpen2010/demo9.svg
a)
the shapes that are animated can be more interesting and
natural
3D shapes as in http://cs.sru.edu/~ddailey/svg/randC5.svg

Tornado:
forming/moving
b) The paths that things follow can be
randomly constructed as in http://cs.sru.edu/~ddailey/svg/randC0.svg

Trees
in falling snow
(not for Opera)
c) The animation frequencies may be
randomized as in http://cs.sru.edu/~ddailey/svg/randE3.svg

Fabric
of the Future
(not for Opera)
Lots of examples at
http://cs.sru.edu/~ddailey/svg/replicateRandom.html
http://cs.sru.edu/~ddailey/svg/randF0.svg
http://cs.sru.edu/~ddailey/svg/randF2.svg
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Sparkle
Forest
Also: the first scriptless web game?
http://cs.sru.edu/~ddailey/svg/RandG3.svg
Attack of the corn borers