Domino's has been running television advertisements for what they call the "555 Deal ", 3 medium one topping pizzas for $5 each. They also claim that this provides you with an unlimited number of combinations.
I'm not sure where these folks learned math, but according to their website they only have 10 different toppings. That 10^3, or 1,000 possible combinations, a long way from "unlimited".
Tsk, tsk, tsk Domino's.