What about something they can see, to start a discussion in the desirable direction?
Once upon a time when I first got on the internet, I saw a lovely tiny model of a backyard, tiny paving stones, potted plants, twig benches, trellises, gazing balls.... you get the 'picture'.
It would be a lot of work, but what about a 3-D model of a
permaculture acre or something, laid out like one of those little train boards, but all permie stuff: passive
solar house, PVs on roof, rainwater harvesting, shadehouse, sunroom/attached
greenhouse, black water-filled barrels for
solar gain in the
greenhouse, solar
hot water heater, trellises, spiral herb garden, veg garden (keyhole),
chicken house/rotation yards/gardens/orchard, fish
pond, etc.
Nothing grabs people like visuals that they can understand.
Sue