We used 55g/2oz fromage frais pots to make these smaller. If you used larger yogurt pots, then you would either need to melt more chocolate to add to them, or not have them filled up as much, which would make it wider, but stumpier. You don't have to use yogurt pots though. You can use large ice cube trays or silicone moulds. But we like yogurt pots, as we always have them and the kids like eating the yogurt first.