The Ferengi practice of drying a dead person's body into powder, pressing it into small discs and selling these as collectables, with prices reflecting the fame of the deceased.
When a Ferengi dies, the body is vacuum-desiccated and the remains are sealed in dozens of small discs, each with a certificate of authenticity. The discs are sold, and a successful Ferengi's remains can fetch a high price.
The custom first surfaces in The Alternate, in which Quark tries to sell Odo a disc he says holds the remains of the celebrated entrepreneur Plegg, who turns out to be alive. It becomes the heart of Body Parts in 2372. Wrongly told he has Dorek Syndrome and only days to live, Quark puts his own remains on the Ferengi Futures Exchange to pay off his debts.
An anonymous bidder buys the lot for five hundred bars of latinum. The buyer is Liquidator Brunt, who demands delivery even after the diagnosis is corrected, leaving Quark to choose between his life and an unbreakable contract.