Fill my bucket, spill my bucket, Over a plane of snow. Black the track as I look back, My footsteps talk but make no sound. What am I?

Why this works

This riddle cleverly uses metaphorical language to describe a pen. "Fill my bucket" refers to the ink reservoir of the pen, while "spill my bucket" suggests the ink flowing out onto the paper. The "plane of snow" symbolizes the blank sheet of paper, which turns black as you write (“Black the track”). Finally, "my footsteps talk but make no sound" indicates that while the pen leaves behind written words (the footsteps), they do not produce any audible noise, highlighting the silent nature of writing.