Not all plants will self polinate/throw a banana.
Cloning is simple.
I take cuts about 4" long and make a 45° angle cut at a node and quickly stick in water to avoid any air bubbles getting in the stem.I then prune a few leaves/new branches leaving about a 1/2" to 3/4" of bare stem at the bottom.Then with a razor blade I scrape the outter tissue of the bare stem and place into rapid rooter plugs (which have a natural rooting hormone in them) and place into a seed tray with a humidity dome on top.
90% to 100% success rate every time.
Should have taken pics tonight as I just took 7 cuts from my mother plant.