I’ve always used this version, since the verb is commonly used in modern English unlike buffalo:

Police police police Police police police Police police.

That expands to “the police from Police, Poland will police the police from Police, Poland, who in turn also police the police from Police, Poland” or something like that.

I spent a couple bucks on one of the Mr Clean ones this time, just cause they were on the shelf at the superstore across the street from my apartment. Now that I know they work I’ll definitely get the cheap ones though