Excess Plastic

The modern version of Lego bricks were first sold in 1958, and since then, the Danish company that makes them has put nearly half a trillion out into the world. This guy did himself some cipherin' with his sums and his guzintas, and found out what you could make if you used all 474 billion of them.

Turns out to be a bunch of houses, a few Empire State buildings, just under 3,000 White Houses, and so on. You could even build an entire Great Pyramid of Giza. Only one, though.

I didn't do the math, but my suspicion is that if you subtracted from that 474 billion Lego blocks all of them that disappeared into the couch cushions, you could manage, maybe, a garage for your Hot Wheels. Which your sister would step on.