I personally had to have major surgury on my nose, it is not fun and for purely cosmetic reasons I would advise against it. I took a knee to the face (accidental from a friend) and it broke in about 14 places and the ER doctor left it as is. A year later I had a deviated septum, problems...
Dang that sucks so bad, sorry for your loss.
1. Get a large caliber rifle
2. Find a dog on the street and put it outside your house, shower it with food and water to stay in the area
3. Wait for neighbor's dog to approach your "new" dog
4. Justice will ensue!
But seriously, that is horrible...