The Fuzzy Green Boulder

I charged straight toward a giant, fuzzy neon tennis ball resting in the grass by the garden hedge. I threw both arms wide and shoved it with all my might, but the bouncy rubber sprang right back, tossing me onto my rump in the clover! I scrambled right up, shook my tail, and hurled myself forward at the exact same spot with another flying tackle. Thud! My belly squished against the prickly felt, and this time the heavy sphere gave way, rumbling forward through the lawn. I scrambled onto the crest and rode the rolling curve until it bumped firmly against a mossy brick!