Adding pavers around a standard concrete walkway can give your entrance a little something extra. And so much less expensive than redoing the whole thing. This would look great for our front walk way when we do finally get our sidewalk poured.
What a lovely, cosy idea. Not strictly for children: this space is designed (as the person who lives here describes) for 'curling up reading or playing or sleeping'. But it's a space that immediately brings children to mind (via DesignSponge)