At every firing range I've ever been on in the military, boxes of disposable rolled foam-type ear plugs have been available...is there no comparable civilian alternative? Besides cigarrette butts??
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Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein