Originally entitled "Hacking Plush Toys: Dissection and Reverse Engineering," this article describes a step-by-step approach to hacking and modifying toys to do things they weren't intended to do. The Playskool Talking Barney, the lovable purple beast, is used as an example.
Paper: Happy Hacking: Moody Furballs and the Developers Who Love Them
Published by Wired Magazine 6(9):143, September, 1998.