You can add some ACV with the mother to apple juice, and wait for it to ferment. Depending on the price of apple juice in your area, this may be more economical.
Many grocery stores that have a natural food section now carry organic ACV, with the mother. And yes, there's a difference. The organic, with the mother, still contains the live culture. The cooked and filtered ACV does not.
Bragg isn't the only brand of ACV with the mother, I've bought...