Mystery 30-foot-tall Secret Santa shows up in MO yards

GLENDALE, Missouri (WHDH) -- Lots of schools and offices have "Secret Santas" this time of year, but one neighborhood in Missouri has them all beat.

Neighbors report a giant 30-foot inflatable Santa Claus that just appears on their lawn each morning.

Now, they all want to know -- who started it?

Imagine finding a 30-foot inflatable Santa in your yard in the morning.

“Seeing it over the house was quite a surprise,” said Santa recipient Jennifer Ullery.

“We found it at 5am in the morning and it glows. It lights up. So it was glowing right outside our bedroom window and the kids got up and they were thrilled!” said Ullery.

It's been happening to families in Glendale and Kirkwood over, and over, and over again - for each a different kind of surprise.

“I was kind of surprised to see a Santa laying on the house.I think it`s great,” said Kameron Herweck.

The Clark's were the latest recipient of this prank, and no one is certain who started it.

“It's quite a bit larger than I thought,” said Carter Clark.

This Santa comes with very specific instructions: You keep him for 24 hours, then pack him up and put him in someone else's yard. Someone with kids of course. The Clarks got him from the Ullerys.

“We kept watch and waited until they were gone and did it as quick as we could,” said Jennifer Ullery.

But who does this guy belong to? Jennifer Ullery thinks she has the answer.

But - the would be mastermind said she's clueless as to whose behind santa.

“Oh my gosh yes. Totally dying to know who started it,” she said.

So Santa will spend the night on Sappington, then move on once again adding another home to those who can't stop wondering.

I don't know how we'll find out. Maybe it will always be a mystery.

There’s a website to track the Secret Santa: SecretSanta2012.com.