Tassle ball on ski caps, reason for it?

[Tripper11]

4. touque - it's called a touque

https://www.urbandictionary.com/define.php?term=touque

touque
A Canadian must have. Most notably worn by Bob and Doug McKenzie. Canadian versions of the touque are best identified by the "pom-pom" attached to the top of the touque.
ok eh! Like it was so cold that we had to wear touques eh!

touque
a hat; skullcap; sled; toboggan; beenie; cap; ear length hat with no destinctive features, simply a bowl-shaped cloth which one wears on the head.
everytime someone says toboggan, I remind them that a toboggan is what you ride down a hill on, a touque is what you wear.