Patch comforting Donner, who seems overwhelmed by the new environment when the Clauses first arrive at The North Pole.
It is implied that the reason the team can't pull off the Super Dooper Looper is because Donner, now the lead reindeer, gets vertigo. However, he works through it (with an under-powered team, no less) because his dear friend (pun unintentional) is in grave danger.
When a depressed Patch meets Joe, he sees the wooden elf Santa made in his likeness, and realizes that Santa still cares about him, contrary to what he thought after his Epic Fail as his assistant.
Meta example: At the turn of the 1990s Dudley Moore was featured in a popular TV commercial campaign for Tesco. The biography The Melancholy Clown notes that during a location shoot for one of the ads, he obliged a group of schoolchildren who were thrilled to meet him because they recognized him from this movie, one child cheering "Patch is here!" Even more heartwarming given the character's arc in the film.