I´ve never been much of a dog or cat person as I´ve always had bunnies as pets. But I can´t dress a bunny up. Or I could, but it just would not be sane... But dogs can be dressed! Check out Kris' blog Resweater for a tutorial in how to make a refashioned wool  knit for mans best friend. Great as a gift or for sale to craft fairs. There´s also plenty of other sweater craft and refashion ideas and how-tos there.