My appearance on the Martha Stewart show on Monday is now online at MarthaStewart.com. To see my segments click on Inventions, 1 and Inventions, 2 on the page.
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects