Written prompt #1:

You may have heard of the movie An American Tail and it's sequel wherein Fievel goes west (oh, what the hell? Apparently there's four movies. TIL).

You might not, however, be familiar with "A Ukrainian Tale: Cajabi Goes West". Not a movie, but a real life story about a young man who packed his hockey bags and journeyed to North America. What does this have to do with pets? Unbeknownst to him, he had a stowaway with him. Somehow, slipping past the scrutiny of international customs, an albino rat managed to find his way into his equipment and make the trip with him. With no real friends yet upon arriving here, Cajabi decided to keep the rodent and named him Ratislav. 
The intention was to leave his newfound pet at home when he went to the rink, but whenever he would go to leave, Ratislav would squeak loudly and frantically claw at his cage. Not wanting to upset his new friend and thinking it couldn't hurt for him to tag along, he put the rat into his hockey bag and brought it to the rink with him. 
As bizarre as it may seem, now whenever Cajabi is on the ice, Ratislav is there with him inside of his hockey gear.. Much like in another rodent themed movie, Ratatouille.
All in all, Ratviy....I mean Matviy and Ratislav give a whole new meaning to the term "rink rat". 

So while not officially a team pet, and rats aren't everyone's cup of tea, Ratislav would likely be up to the task of being in the locker room to help boost team morale. Just so long as Scott Mellanby isn't going to be making any surprise appearances.