69 pet miscellaneous items
The Forever catalog holds 69 pet miscellaneous items, topping out at item level 60 with Tranquil Mechanical Yeti, Disgusting Oozeling, Lifelike Mechanical Toad. Mounts, companions, junk, and everything the game files nowhere else, Classic Era and Forever alike.
By quality: 60 common, 5 rare, 4 uncommon. Item levels run from 1 to 60, for characters from level 1 to 1. 12 bind when picked up and never reach the auction house; 57 can be listed.
The highest item levels here: Tranquil Mechanical Yeti (60), Disgusting Oozeling (55), Lifelike Mechanical Toad (53), Cat Carrier (Corrupted Kitten) (40).
One profession makes 3 of them: Engineering (3). The rest drop, are sold by vendors, or come from quests.
Source: World of Warcraft: Forever game data and Blizzard's Game Data API. Updated with each game build.