I'm almost at the point where if someone is stupid enough to buy something that fraudulant that they don't deserve to get their money back. Like the old saying goes "a fool and his money are soon parted".http://www.quackwatch.org/01QuackeryRelatedTopics/PhonyAds/qray.html
When you see the Q-Ray commercials now, they don't directly claim that it has specific benefits, only that purchasers report benefits, and they show a bunch of vaguely-worded testimonials. If the purchaser is indeed "benefiting" from a placebo effect, you cannot challenge the sellers on it. Very sneaky.
In the late '60s, early '70s (IIRC) it was copper bracelets that became a fad, with supposed health benefits. That in turn was a recycling of an even older folk belief in using copper bracelets to combat arthritis. One of my uncles used to wear his 24/7.