Image source: http://www.pickarestaurant.com/cookbook/Donuts.jpg
A bakery makes fluffy donuts, thick donuts, and filling donuts, uses vanilla
or chocolate frosting, and has toppings of sprinkles, nuts, sugar, or nothing
at all. With 3 types of donuts, 2 types of frosting, and 4 types of toppings,
the shop can make 3x2x4 = 24 different types of donuts.
Image source: http://www.microsoft.com/mscorp/artcollection/exhibitions/wis/gallery/images/opie-cars.jpg
A variety of different cars can be produced using different colors, style,
interior, and added features.