The seal affixed to the remains of Plegg.
The Ferengi Seal of Dismemberment is a Ferengi mark of authentication that is affixed to the vacuum dessicated remains of Ferengi individuals.
The Seal serves as a certification for any disc of dessicated remains, providing a nominal guarantee that the remains in the disc are those of the Ferengi they purport to be. Because the remains of some Ferengi are prized as collectibles in that society the presence of the Seal can increase the value of the discs. (DS9: "The Alternate")
Not all vacuum dessicated remains seen have been marked with the Seal.