Used with the permission of Dave Coverly and CartoonStock. Cartoons are the property of their respective artists and are subject to copyright laws. Do not reproduce or redistribute this cartoon ...

Engineers left these drawings as a way to sign their work. Many are puns that made them chuckle to themselves. Now social media has rediscovered them and hobbyists try to keep that history alive.

Browse 2,200+ guacamole chips stock illustrations and vector graphics available royalty-free, or search for vegetable smoothie or trail mix to find more great stock images and vector art.

Browse 280+ baking pan stock illustrations and vector graphics available royalty-free, or search for baking pan overhead or floured baking pan to find more great stock images and vector art.