You won't get them to look like one piece...If you lace it (double stitch technique) instead of sew it you will cover the raw edge. I suppose you could make the cover slightly larger and slick the edge before you sew on the interior.
Very stylish! I like them!
Over here we usually have the dog or cats name on a metal tag hooked to the collar. Usually for immunization records and when a dog/cat gets lost it can be identified.
I'm considering getting another sewing machine to handle my lighter weight leather projects. I found this on Craigslist. I would like someone to tell me what the extra parts are. These photos are from the ad so hopefully you can tell what they are.