Japanese Firework Prints
Open Culture has a lovely gallery of prints of Japanese firework designs. See hundreds of these prints online at via the Yokohama City Library. (Thanks, Todd!)
“The Weird, Beautiful Art of Vintage Firecracker Labels”
SF Gate has a little about the history of the art on firecrackers and a whole lot of pictures of vintage firecracker labels. Click through to see them! (Thanks, Stephanie!)
The Cultural Gutter 