The NEW LVA:

There once was a site on the Web
Which caused readers nothing but dread.
Along I came
Now nothing’s the same.
People view it and smile instead.

Just one more:

There once was a girl from Devrizes
Whose breasts were of 2 different sizes.
One was small
And of no use at all
The other was quite large and won prizes.


Source: http://forums.familyfriendpoems.com/topic.asp?TOPIC_ID=918