LabelVision shows about 71 Rock & Rye products approved over the last 17 years. These three really stand out, as bold designs.
TTB prefers Rock & Ryes made precisely this way as per 27 CFR 5.22:
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(3) “Rock and rye”, “rock and bourbon”, “rock and brandy”, “rock and rum” are liqueurs, bottled at not less than 48° proof, in which, in the case of rock and rye and rock and bourbon, not less than 51 percent, on a proof gallon basis, of the distilled spirits used are, respectively, rye or bourbon whisky, straight rye or straight bourbon whisky, or whisky distilled from a rye or bourbon mash, and, in the case of rock and brandy and rock and rum, the distilled spirits used are all grape brandy or rum, respectively; containing rock candy or sugar syrup, with or without the addition of fruit, fruit juices, or other natural flavoring materials, and possessing, respectively, a predominant characteristic rye, bourbon, brandy, or rum flavor derived from the distilled spirits used. Wine, if used, must be within the 21⁄2 percent limitation provided in §5.23...