Note: this collection is not a random nor representative collection of all possible SVG documents that might dynamically add content to the DOM. Rather it is a complete collection of those examples I've created over 9 years that I was able to find in a relatively brief time.

descriptionWhere
Working
link
Legend: Where working={A, C, F, O, S}={IE/AdobePlugin, Chrome9, Firefox 4b, Opera 11, Safari5} Scoring: {2=fine,1=partly,blank=0=nope, *=best-for-test=2 }
Several different bitmaps are carved by dynamically generated clipPaths, with dynamically generated animate tags.
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2 1 1 * 1
http://srufaculty.sru.edu/david.dailey/svg/clips2.svg
Small paths are non-deterministically added to the DOM as custom-built gradients are animated and added to each.
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2 2 * 2  
http://srufaculty.sru.edu/david.dailey/svg/newstuff/tilesA.svg
New random n-pointed stars are introduced, each with unique characteristics and animations.
A C F O S
2 * 2 2 2
http://srufaculty.sru.edu/david.dailey/svg/stars3.svg
New random n-pointed stars are introduced, each following a different bezier, that runs parallel to a clipping region.
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*   1 2  
http://srufaculty.sru.edu/david.dailey/svg/SVGOpen2007/swatch3.svg
something like the above only simpler
A C F O S
2   2 2  
http://srufaculty.sru.edu/david.dailey/svg/svgopen2008/makestars4.svg
simpler objects but wavy curves: good case for SMIL and script
A C F O S
2   1 2  
http://srufaculty.sru.edu/david.dailey/svg/bezierovals.svg
Clicking on a curve introduces new content at equal intervals along a Bezier curve
A C F O S
2 2 2 2 2
http://srufaculty.sru.edu/david.dailey/svg/curve.svg
New stops of a user-chosen nature are inserted into radial or linear gradients and then used to deform an image like pond ripples
A C F O S
2     *  
http://srufaculty.sru.edu/david.dailey/svg/waves.html
Inserting rectangles into the feImage of a filter.
A C F O S
2     2  
http://srufaculty.sru.edu/david.dailey/svg/later/displace2.svg
seaweed: quasi-random placement of randomly animated ellipses along nearly parallel paths
A C F O S
2   2 2  
http://srufaculty.sru.edu/david.dailey/svg/strands3.svg
randomly constructed gradients inserted into triangles created by script
A C F O S
2 1 2 2  
http://srufaculty.sru.edu/david.dailey/svg/triangles6.svg
rotating hexagonal tessellation filled with random gradients
A C F O S
2 * 2 2 1
http://srufaculty.sru.edu/david.dailey/svg/pattern.svg
random squiggles with a triangular basis
A C F O S
2   * 2  
http://srufaculty.sru.edu/david.dailey/svg/tribraids9.svg
simple drawing: create, drag and drop
A C F O S
2 2 2 2 2
http://srufaculty.sru.edu/david.dailey/svg/makeDragDrop.svg
drawing random polygons (hit the "15 fresh button" to see it work)
A C F O S
* 2 2 2 2
http://srufaculty.sru.edu/david.dailey/svg/polygons7.html
another drawing program (not quite so random)
A C F O S
2 2 2 2 2
http://srufaculty.sru.edu/david.dailey/svg/Draw018.html
rotating triangular gradients
A C F O S
2 1 2 * 1
http://srufaculty.sru.edu/david.dailey/svg/triBraids4.svg
animated semantic network
A C F O S
2 2 2 2 2
http://srufaculty.sru.edu/david.dailey/svg/graphs30.svg
program for drawing semantic networks
A C F O S
2 2 2 2 2
http://granite.sru.edu/dailey09/grapher.html
egg-cloning (click and drag)
A C F O S
*     1  
http://srufaculty.sru.edu/david.dailey/svg/eggcloning3.svg
a few more not shown above??http://srufaculty.sru.edu/david.dailey/svg/SVGOpen2008/edges_of_plausibility.htm
a few dozen more using scripted <replicate>??http://srufaculty.sru.edu/david.dailey/svg/SVGOpen2010/replicate.htm
 

Scores:

A C F O S
40 21 31 39 17
* : best in show
3 2 2 3 0