Perhaps slightly off topic, but I have for years admired the cooking schematics on Cooking for Engineers. Here's the recipe for meat lasagne - scroll to the bottom and admire the schematic and the bonus layer diagram:

http://www.cookingforengineers.com/recipe/36/Meat-Lasagna

Edited to add: Oh, and you mentioned shoelaces, so the venerable Ian's Shoelace Site is a must:

https://www.fieggen.com/shoelace/