Holographic Digitalization Hearthstone
Source: Other. Some facts: seems to behave exactly like normal : shares CD (but not with , , and probably all the other similar spells and items) same CD reductions work (e.g.
The 
Holographic Digitalization Hearthstone is a cosmetic toy obtained as a random drop from killing Data Anomaly during the Discs of Norgannon daily event in Mechagon.
Guide awaiting review
Wait for Discs of Norgannon
The Holographic Digitalization Hearthstone only drops during the Discs of Norgannon daily event in Mechagon. Do not attempt to farm it when this event is not active.
Kill Data Anomaly Enemies
Once the Discs of Norgannon event is active, help other players kill Data Anomaly enemies in Mechagon. The Holographic Digitalization Hearthstone is a random drop from these kills, along with other items such as 
Large Storage Fragment, 
Metal Detector, and 
Blueprint: Holographic Digitalization Relay.
Check Archivist Bitbyte
After participating in the event, check with Archivist Bitbyte at 71.8, 36.6 in Mechagon for further quest-related interactions tied to the Discs of Norgannon event.
Add Toy to Action Bar
Once you have the toy, you can delete your 
Hearthstone from your bags and place the Holographic Digitalization Hearthstone directly on your action bars instead, freeing up a bag slot while retaining full hearthstone functionality.
Tips
This toy shares a cooldown with the standard Hearthstone but does not share a cooldown with the
Dalaran Hearthstone, and cooldown reduction effects such as Hasty Hearth apply to it as well.The toy can be used in combat, has the same cast time as the normal Hearthstone, and returns you to the same bound location.
