This is a loom knit pattern that is easily adjusted for dogs of all sizes. I used the “preemie hat” Knifty Knitter for my small/medium size dog. Larger dogs would need cowls made with the larger looms.

This uses up stash yarn - only a small amount is needed and it can be easily customized for any occasion and any dog. I use two strands of worsted weight or bulky yarn held together as one. You could also just use one strand of super bulky yarn.