What is the name of Sheldon's childhood stuffed animal in The Big Bang Theory?

What is the name of Sheldon’s childhood stuffed animal in The Big Bang Theory? Mr. Snuffleupagus is the canonical answer.

The stored answer, “Mr. Snuffalupagus,” is a misspelling of the character’s established name. The standard spelling is “Snuffleupagus,” with “-uffle-” in the middle and “-upagus” at the end.

Mr. Snuffleupagus is a character from Sesame Street, commonly called Snuffy. He resembles a large, shaggy elephant or mammoth and was originally presented as Big Bird’s imaginary friend.

Because the question describes a childhood stuffed animal and the answer options use near-identical invented variants, the intended canonical name is clearly Mr. Snuffleupagus. The answer has been normalized to the recognized spelling.