Atomic Recalibrator
From Atomic Recalibrator. IMHO, there is only one acceptable place to use this. The Door of the Auction House.
The 
Atomic Recalibrator is a profession-crafted toy from the Dragonflight expansion that places a pad on the ground, transforming any player who walks over it into a random race and gender for 1 hour.
Guide awaiting review
Obtain the Atomic Recalibrator
The Atomic Recalibrator does not require Engineering to use, so it can be purchased from the Auction House if you do not have the profession to craft it yourself.
Place the transformation pad
Use the toy to place a pad on the ground in front of you. Any player who walks over it, including players not in your group, will receive a random race and gender appearance — including Allied Races and potentially your own race — for 1 hour. The pad lasts 3 minutes.
Understand the buff behavior
The 1-hour appearance buff persists through death and, as of patch 10.0.5, switching forms such as Druid or Shaman forms will no longer remove the appearance change. The toy has a 12-hour cooldown before it can be used again.
Tips
The Auction House entrance is a popular spot to place the pad since many players pass through it.
