I use a taro powder mix to make bubble tea at home and I love it. It tastes just as good as the store bought kind and costs much less.
I make mine with milk and tapioca pearls. Sometimes I make it with green tea too because the mix actually doesn't have any tea. I think that's the case with many taro teas on the market. Although the directions say to mix with water, I suggest mixing it with milk or tea because it tastes much better that way.