The Gravity Chute

I squeezed past the loose garden gate and marched straight up to the weathered potting bench! Four empty clay flowerpots were sitting around doing nothing productive. Completely unacceptable! I immediately stacked them base-to-rim in a vertical column, nudging each rim until their bottom drainage holes lined up into one continuous tunnel. Flawless structural geometry! Then, I snatched a smooth green acorn from the dirt, scrambled up the side, and dropped it dead center down the shoot. Clink, rattle, thud! It zipped straight through all four tiers and bounced onto the splintered planks below! The world's fastest vertical chute, fully operational on the very first try!