I have a great little propagating book: It explains growing ferns from spores.
Below I have condensed its instruction, but will gladly tree mail you word for word if you want to try it. I think it sounds fun. Best of all it's not a fussy exercise. Once you have the pot completed, you just watch, and wait.
Pick mature frond with small green scales that looks like small liverwort, called prothallus. Google for images to recognize.
Shake the heck out of the frond in paper bag, and you will end up with brown dust, Soil should be finely sieved. peat and River Sand, and sphagnum moss, equal parts. Sprinkle the dust on soil, keep very very moist (special easy set up in instruction) Put a piece of glass over the pot. Do not uncover. (watering is done from bottom) Keep in a slightly shady but warm spot. You will see a green film form on soil and soon you will get individual tiny fronds. Sounds like this will give a lot of tiny ferns growing.
I would love to see you get to have all the ferns your heart desires, let me know if you want complete instruction. Good Luck.
