We keep track of each puppy from birth until they leave our home by using different colored nail polish. It's the safest method of identification in our opinion - many other highly respected breeders and vets agree, too. For this litter we are using black, orange, blue, and yellow (no marking); when you see a puppy with the same color it's because one is a male and the other is a female (for that color). Here are a few pictures in a slide show of each puppy!
Side note: we tried to get 3 or 4 good pictures of each puppy, but some of them were in a pretty playful mood and didn't really want to pose, leaving a majority of the pictures pretty blurry...more pictures will be coming soon, though, so check back soon!