Here's something I found on Medium under the title Almost The Worst Joke In The World.
Don't say you weren't warned.
***
On a December trip to Frostbite Falls, Minnesota, Ferdinand Feghoot was summoned to the local college, Wossamotta U. by Inspector Fenwick, the Chief of Police.
There he was confronted with an appalling scene. Bullwinkle, the town’s leading citizen, had been smashed flatter than a kippered herring by a falling safe.
“It’s a common enough means of death for cartoon characters,” Fenwick opined. “Every year, we lose five or six citizens to falling safes. But this time, it was no accident. This time, it’s murder!”
He showed Feghoot the ingenious deadfall trap rigged to rain financial ruin on an unsuspecting victim. Bullwinkle’s antlers were still entangled in the tripwire. Grasped tightly in one hand was a small statue of a Hindu god.
The dead quadruped’s best friend, Rocky the flying squirrel had been with Bullwinkle at the time of his death, but when questioned by Feghoot, the distraught rodent said all he could remember was seeing a rabbi fleeing the scene upon a pogo stick.
Fenwick immediately issued an APB for the rabbi.
“You’re wasting your time, Fenwick,” said Feghoot grimly, as he stood from his examination of the body. “The rabbi has been framed. When you find him, he will tell you of some elaborate ruse that induced him to be on a pogo stick at this time and place.”
“How do you know that, Feghoot?” asked the Inspector.
“This is the work of the Christmas Killer,” Feghoot declared. “I have been on the trail of this fiend for years, and I fear that we might never catch him. Every December, he arranges one of these grisly messages.”
“Look! Didn’t you notice the smile on the victim’s face? The corners of his mouth have been propped up… by these!” He displayed two toothpicks he had taken from Bullwinkle’s mouth.
“I still don’t see how you know the murderer is the Christmas Killer,” said Fenwick.
“Isn’t it obvious?” Feghoot asked. “Wee Vishnu, a merry crushed moose, and a hoppy Jew near.”
