Find a Teleporter Calibration Unit. The unit can be found in any bush or critter anywhere in the world, but is much more common in bushes in the highest level areas you have unlocked. Return to the Elf at the fairgrounds after you've found it.

Christmas - FtT
Previous Quest:
A Christmas Adventure Awaits!

Stage 1: Find a Teleporter Calibration Unit

Stage 2: Return to the Elf at the Fair

Rewards: Red Stub x1, 310xp (!)

Next Quests: Decorating the Tree!, For the Rest of Us, Feed the Reindeer, The Cover-up!

Questline: Christmas Event