We used to paint our toy poodle, Peaches, nails. A good way to paint dog nails that have fluffy fur that can get in the way, is to take old panty hose and put it on the paw, like a glove, with the nails cut through, to make holes in the panty hose (for the nails to go thru), then the fur remains behind the panty hose and doesn't get in the way of the polish making a mess...saw it on TV, i think.