This is how rubber is made. First off, you gotta find the right tree. Not just any old leafy buddy will do, then comes the fun part, making a little cut in the bark. Like a tiny slide, this lets the milky white sap, kind of like super glue from mother nature, ooze out and slide down into a bowl waiting below. Now you can enjoy watching the sauce white sauce flowing. Rubber is being used for producing tires, shoes, or even chewing gum, so this special white sauce is very useful.