Cuprum

Fun detected, fun deleted! On July 17th, Build 11.0.2.55665 removed the repair part & on 6 August 24 the vendor portion was removed... every single time Blizzard :-(((((

To get this pet, your Warband has to unlock Snuffling by reaching Renown Rank 2 with the The Assembly of the Deeps. Then you can start to dig in patches of Disturbed Earth (not marked as treasure on your minimap but easily recognizable when you activate outline mode) in all Khaz Algar zones to find wax (and other things). There are dozens of interactions when you dig and you'll pick up different amounts of Odd Glob of Wax Odd Glob of Wax. You'll need these globs of wax to acquire Firelight Ruby Firelight Ruby to purchase Coppers the Kobold Coppers the Kobold.

When you contribute 100% (10 contributions of 5x Odd Glob of Wax Odd Glob of Wax) to Middles's collection in Gundargaz in The Ringing Deeps) you'll be rewarded with 1x Firelight Ruby Firelight Ruby, the currency used on Ruby Vendor Gnawbles for a variety of things like battle pets, toys, crafting reagent containers, and more. This is about the bar for the personal reward only (that'll also immediately reward 10x Valorstones Valorstones for each contribution on Level 80 characters). Right now it looks like there's no limit on player wax contributions.

In Build 11.0.2.55399 they also added a description for community contributions. Whenever a player in your region receives a Firelight Ruby Firelight Ruby by filling their personal bar, 1% is added to your region's progress. When the community's progress reaches 100%, another purchase will be unlocked on Gnawbles.

Unfortunately, this was added so late, that we probably unlocked all (?) 11 purchases and can't figure out what the vendor will have in store initially. So be prepared to not have immediate access to some things you like (e.g. Coppers the Kobold Coppers the Kobold).

/way #2214 47.66 35.29 Gnawbles
/way #2214 47.69 35.24 Middles Wax Turn-In