Complete these first; Nogg's Ring Redo is the final step.

1. 1
   Grime-Encrusted Ring · level 34

   Find a way to remove the grime from the Grime-Encrusted Ring by using the Sparklematic 5200.

   Pick up: Grime-Encrusted Ring, dropped by Dark Iron dwarves in Gnomeregan · Turn in: The Sparklematic 5200, inside Gnomeregan
2. 2
   Return of the Ring · level 34

   Take the Brilliant Gold Ring to Nogg in Orgrimmar.

   Pick up: The Sparklematic 5200, inside Gnomeregan · Turn in: Nogg, Valley of Honor, Orgrimmar
3. 3
   Nogg's Ring Redo