The Glass Marble Tower

A large, swirly green glass marble was nestled inside an empty wooden egg cup on the low shelf. I paused, tilting my neck to study its smooth curves and how the afternoon light beamed straight through its glassy heart. It looked wonderfully balanced, but perhaps a bit lonely. Stepping closer, I noticed a flat wooden domino tile resting nearby. With quick resolve, I nudged the domino forward with my snout, sliding it until it formed a tiny ramp against the cup's rim. Planting my front hooves firmly, I bumped the marble. It rolled gracefully down the wooden ramp and clicked against the shelf edge with a crisp ring!