What NAF code for pottery?

My first business is a Paint Your Own Pottery Studio. I have no idea what this comes under. I was registered before under my husband’s business as the a maker of pottery (Artisan), because I used to pour my own moulds, paint my pieces and sell them. Basically now, I will be buying bisque (fired pottery) in, people then come into my home based studio to paint it, leave it with me to glaze and fire and collect it about a week later. I guess I come under activités commerciales as I will be basically buying and selling, but I’m not totally sure, and what NAF code would it be? There are lots of these ceramic cafés in America if you need to get an idea of what it is I will be doing, a quick google search will take you to many, it is not big in France as yet, but there are a few.

My secondary activity is website design, which I know comes under profession liberale, but again what NAF code? As I was registered under my husbands businesses before (but I am no longer) I already have a social security number, do I put this on the A-E registration form when I fill it in? When adding family members to my assurance maladie cover, do I put my husband down as conjoint, or does he stay separate under his own registration and do my 2 children go on his and mine?