Spanish Moss (Tillandsia usneoides) only has roots when first germinating, just hang it in a bright, airy spot and hose it down occasionally.
There are a few Tills that die after flowering (monocarpic) and produce no offsets but not many make it into the trade except for T. utriculata. Vrieseas will give off a pup or two before dying.
If you're planting the top cover your pineapple with soil just to the base of the leaves. Keep in good light and kept slightly moist till it roots.