Place rose petals in a nonreactive bowl. Bring vinegar, honey, and salt to a simmer in a small saucepan, stirring until salt and honey dissolve. Remove from heat and let cool 5 minutes; pour over rose petals and let cool, about 15 minutes.
Rose Bowl Pickling rose petals may sound overly precious, but it's really very easy to do, and the result is lovely -- in flavor and aroma, the petals are floral but not at all perfumy.