My puppy needed a new coat for the snow we are bound to see up north next winter. Used a precut jelly roll and saved tons of time. This only took me a day to do and wasn't hugely chalenging. Already tested it out and it does good at covering more than store bought coats. All it needs now is water proofing and it's good to go.
I have also created instructions on how to make one for your pet, too. You can download them right here.