Mr. Wiggles
Source: World Event. Many assume 'Wiggles' refers to the motion of this pig's posterior. They discover the true meaning when they see their own entrails. Critter type. They discover the true meaning when they see their own entrails. I am not sure what this means, and it scares me.
Mr. Wiggles is a piglet companion obtained as one of four reward choices during the 2006 Children's Week world event, earned by escorting a young orphan across Azeroth.
Guide awaiting review
Pick Up Orphan Quest
For Horde players, use the 
Orcish Orphan Whistle at 58, 57.2 to summon your Orcish Orphan and begin the escort quest chain, then pick up any additional quests available there.
Visit Lady Sylvanas Windrunner
Escort your orphan to the Undercity Entrance at 56.3, 91, then continue inside to Lady Sylvanas Windrunner at 52.4, 63.9 as one of the required stops during the quest chain.
Visit Cairne Bloodhoof
Take your orphan to The Fallen Chieftain east of Thunder Bluff at the Red Rocks in Mulgore at 50.5, 74, then continue to Cairne Bloodhoof at 60.8, 23 to complete another stop on the orphan tour.
Claim Mr. Wiggles as Reward
After completing the orphan escort quest chain, return to turn in the quest and select Mr. Wiggles — a 
Piglet's Collar — from among the four reward choices, which also include a rat, a turtle, or 
5 gold.
Tips
Mr. Wiggles is the only readily obtainable pet with access to the battle pet ability Uncanny Luck, as the three other pets with this ability are no longer acquirable.
Uncanny Luck pairs well with abilities that have a high miss chance, since those abilities are designed to hit hard when they do connect, making Mr. Wiggles a strong choice for pet battles despite his uncommon quality requiring a Battle-Stone to upgrade.
