Did it work out to propagate the tendrils from the store bought designer grapes? I’ve been giving some thought to propagating the ‘cotton candy’ variety from a store bought bunch because the despots in a Bakersfield won’t even allow cuttings to be sold or their designer grapes. Sounds a little paranoid. I don’t think many of us are planning to fill the bed of the truck with black market grapes and sell them to high schoolers. Any insights would be much obliged.