Rocketry hobbyist John Coker created an 8-pack of rockets, designed and painted to mimic those crayon packs your folks used to buy you back in grade school. They were first launched back in 2004. On Coker’s site, you can see all kinds of neat design notes that take you through the process of creating a novelty projectile. It’s not quite a how-to, but it’s still pretty nifty.
(Via Jack Schofield)