JewelCraft
From JewelCraft. Sounds like this toy will be some sort of Bejeweled, a puzzle game very popular.
The 
JewelCraft is a Jewelcrafting-crafted Toy introduced in Legion that launches a Bejeweled-style minigame, and can be traded or purchased from the Auction House by any player regardless of profession.
Guide awaiting review
Start the Jewelcrafting Questline
To learn the design for JewelCraft, begin the Jewelcrafting questline starting with the quest Facet-nating Friends, which eventually leads to the quest Socket to Me.
Complete Socket to Me
The quest Socket to Me requires you to obtain 6 items from around Azeroth; completing it teaches you the design for JewelCraft.
Craft at Skill Level 700
Once you have the design, craft JewelCraft at Jewelcrafting skill level 700 to obtain the Toy, which is account-wide and has no cooldown.
Tips
JewelCraft is tradeable, so it can be purchased directly from the Auction House if you prefer not to craft it yourself.
There is an achievement tied to this Toy called Hot Swapper, making it a worthwhile addition for achievement hunters.
The minigame works like Bejeweled — swap two adjacent objects to form a horizontal or vertical row of 3 or more matching gems; there is no time limit in WoW's version. See the video guide for a full gameplay demonstration.
