Help Stamp Out Silly Mistakes!
Stamp vs. Stomp
"Stomp" is colloquial, casual. A professional wrestler stomps his opponent. In more formal contexts "stamp" is preferred. But you will probably not be able to stamp out the spread of "stomp."
For an artist, a stomp refers to a pencil-shaped stick made of compressed paper, sharpened with a regular pencil sharpener but used to smudge pencil or pastels to soften their appearance on the paper.