Varying from the basics, light flavors and colors can be added to pasta with egg yolk, spinach, tomato paste, chocolate, and even squid ink. Each of these pastas creates its own unique dining experience when properly served.
Throughout most of history, most money has been commodity money, which is an item used for money that has intrinsic value. Gold, copper, and silver coins are common examples. One major problem with commodity money is that it's cumbersome to use for large purchases. Just think how many silver coins you may have to use to purchase a car or a house - you would literally need a treasure chest or more. Representative money solves this problem.
A commodity swap is a type of swap agreement whereby a floating (or market or spot) price based on an underlying commodity is traded for a fixed price over a specified period. A Commodity swap is similar to a Fixed-Floating Interest rate swap. The difference is that in an Interest rate swap the floating leg is based on standard Interest rates such as LIBOR, EURIBOR etc. but in a commodity swap the floating leg is based on the price of underlying commodity like Oil, Sugar etc.