Charles F. Pidgin came up with a great idea - a coiled paper tube with words printed on it. When actors in a silent movie needed to deliver a line of dialog, they simply blew on the tube to inflate it and show the words. Too bad all movies aren't made this way.
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
MORE: Vintage Weird