My friend Touchstone and I met on a Christian homeschooling forum. Over there we got into lots of conversations with Young Earth Creationists [YECs] and Old Earth Creationists [OECs] and Theistic Evolutionsts [TEs].
In one memorable exchange, radiometric dating and its reliability came up. Together we were trying to explain the basic science involved, in layman's terms but hopefully with some intelligence and accuracy.
Touchstone's bright idea: Radiometric Popcorn.
I've asked him to weigh in here with a presentation of radiometric dating and radiometric popcorn.
Watch for it: it's worth waiting for.