[erichart]

Does she not like the flavor of the RC cola, or the label? Because if she doesn't like the flavor, you can buy the Coke cans and put the RC label around it; cut the top and bottom off the can of RC Cola and sleeve it over the can of Coke.
Otherwise, I would think a generic or store brand would be more likely to be the same as it was in 1999, or at least, be unrecognizable to an audience.