Came back from vacation to find I have finally successfully propagated a Banana plant! It has been almost two months since I buried the leaf in the substrate but I come back to see new leaves and a large root forming. I have second one that I buried at the same time, but it is not doing as well, and I came home to find it broken. I stuck it back in the sand and see if anything comes of it. Here's a pic of the little guy, hopefully it will continue to grow.