THE CASE OF THE DISAPPEARING TAMPON BRAND. “Drugstore shelves have been mysteriously empty of o.b. nonapplicator tampons since late fall, leaving the feminine hygiene product’s devotees puzzled and peeved. The popular product is in such short supply that eBay users are bidding up to $76 for three packs, which usually sell for just $8.79 a pack.” This reminds me of the Seinfeld “spongeworthy” episode. Well, sort of.