Oh, I totally use them for the same thing. It's more that whenever this comes up, some people inevitably go off on tangents about how that's not what AirTags are used for, and we're crazy for using them for this (incredibly obvious) application.
“The first mass-produced cotton swab was developed in 1923 by Polish-American Jew Leo Gerstenzang after he watched his wife attach wads of cotton to toothpicks to clean their infant's ears.”