Chatterstone
From Chatterstone. Using this toy will show "Gem activated." in yellow text, and will give you an invisible aura.
The 
Chatterstone is a toy crafted through Professions that, when used, displays 'Gem activated.' in yellow text and applies an invisible aura to the player.
Guide awaiting review
Craft the Chatterstone
Obtain the Chatterstone through its Profession recipe and add it to your Toy Box.
Activate the Gem
Use the Chatterstone to display 'Gem activated.' in yellow text and receive an invisible aura. Using it again while the aura is active will display 'Gem deactivated.' in yellow text.
Watch for Perfect Activation
On very rare occasions, activating the Chatterstone will display 'Perfect gem activated.' in pink text instead of yellow. What this does beyond the standard activation is currently unclear.
