(This joke is related to the new $2 coin that was just introduced in Canada to replace the $2 bill) One of the guys here at school made a joke about the future coins that we might have: The $5 coin. Its a ring that fits around the $2 coin. The reduction in the amount of required metal will save the Canadian government millions. Later, the $10 and $20 dollar rings will be gradually phased in. It is expected that the $100 coin will also be usable as a spare tire if you get a flat.
(From the "Rest" of RHF)