Innovation Investigator

The most effective method is farming Cartel-specific Rares such as Voltstrike the Charged, Scrapchewer, M.A.G.N.O., and Giovante repeatedly — the drop chance for Miscellaneous Mechanica is not removed after the first kill of the day. At Renown 6 you can trigger their spawn events yourself, making this more efficient. Alternatively, joining a Market Research farming group running Darkfuse troves after reaching Exalted with the Darkfuse faction yields roughly 1– 2 Miscellaneous Mechanica every 2–3 hours, amounting to approximately 30 hours of farming to reach the 25 needed for the mount. Overflowing dumpsters in the zone are also a noted source, outperforming boss loot in total yield.

Once you have collected 25 Miscellaneous Mechanica, find Skedgit Cinderbangs at 43.25, 82.84 in Undermine and purchase the Innovation Investigator for 25 Miscellaneous Mechanica. Note that this mount is tradeable, so it may also be available from other players on the Auction House.