Andrew's Vector Plugins Volume 19 'PointEffects':
"Bloat" plugin: Distorts / warps 'bloats' a path or selected paths. Comes packed with many distortion options. Also has sketch effect feature to create rough drawn or scratchy illustrations.
"CornerPoint" plugin: Plugin manipulates anchor / direction points of paths to create weird and wonderful shapes even from a basic designs.
"PieSlice" plugin: Plugin slices a path into multiple slices for zoom effects and more. Create dramatic new paths from basic as well as complex paths. The plugin set can create abstract designs to star designs to sliced illustrations.
"Split" plugin: Splits the plugin's stroke into a sketchy design in a variety of designs and sketch styles. Hi-impact designs, great with converted text and other paths.

The plugins, unlike many of the plugins in the series, require only paths.
The plugins will not work on symbols etc (though you can expand the symbols in Adobe Illustrator)
The paths can be quickly converted to symbols for future re-use
Export the paths to other applications such as Photoshop or export them for animations etc in Flash
If the original path has a stroke and the weight option is set to greater than zero, an additional path is added, overlaying the distorted with the original path design.
The original path design can then be additional distorted or sketched
Color effects added to the outline.
Re-apply the plugin to create multiple sketch designs to create intense dark / colorful sketch drawings in seconds
Import an image, apply live trace, expand, apply a stroke such as 0.25 pt and apply the plugin to add a sketchy / rough drawn illustration effect to any image
The bloat / sketch feature is great for creating rough edged text
The sketch feature is great for cartoon like imagery and more