White Castle, makers of the world's finest square sliders (IMO!!), have productized their glorious steamed beef/onion odor in the form of a candle. The candles have already sold out online but according to WCPO.com, they can be purchased at White Castle locations for $10, including the ceramic carton.
"Could A Familar Scent Be 'What You Crave?'" (Thanks, Charles Pescovitz!)