Scribbled text After Effects tutorial

James Polits has an After Effects tutorial video on using the Scribble effect and the “rd_ShapesToMasks” script from Jeff Almasol's Redefinery, Sketched/Scribble Text Tutorial Using After Effects CS3:

"Ever wondered how people make that scribbly filled-in text? I used to wonder how to create that look, but never found a tutorial for it. So I decided to make one. This tutorial will walk you through using the Scribble effect and the Write-on effect in After Effects CS3 to create this cool and handy animated text look."

There's more info on the Scribble effect in AE Help and in older tutorials by Aharon Rabinowitz, Working With the Scribble Effect, part 1 and part 2.