World Play-Doh Day: What Happens When Adults See Play-Doh for the First Time in 20 Years Play-Doh has been evoking powerful feelings of nostalgia since 1956, and it's no different here at ABC News.

Christie's is offering a massive Jeff Koons "Play-Doh" sculpture at its upcoming postwar and contemporary evening sale for a cool $20 million.

Remember Play-Doh, the playful putty that, as a child, you either ate or ground into the carpet while squishing it into various shapes? (Full disclosure: we still play with it here at Mashable ...