https://www.collinsdictionary.com/us/dictionary/english/twofer (mirror):
noun. Informal. A pair of (theater tickets, phonograph records, etc.) sold for, or approximately for, the price of one
Is there a French noun equivalent for "twofer"? I know one can say "deux pierres d'un coup" or "deux pour le prix d'un", but I wonder if there is a noun conveying a similar meaning.