Sock'em Boppers underwent something of a renaissance in the mid- to late-2000s, spurred on in equal parts by nostalgia and their increased availability from online retail stores. A July 24, 2006 article in the Chicago Tribune reports that "sales ... of [Sock'em Boppers] saw an increase of 18% between 2005 and 2006, ... the product's strongest showing in almost a decade." In January 2012 Socker Boppers were launched in the UK at the London Toy Fair by London based toy company Wicked Vision.
We're naming fads that lasted longer than Joanne? I don't see how it's off-topic, fads are a part of pop culture and we're linking them to Joanne (another fad) anyway