You know those gigantic bottles of cranberry joice sold at costco which don't fit inside the refrigerator without exerting a bit of force?
I found a great use for them. I've been waiting for the proper time to plant fern spores. It takes awhile for them to germinate (3 months approx). I have a small little pot that I managed to stuff inside the empty bottle, like a ship inside a glass bottle. This would function to maintain the humid atmosphere this plant requires to grow.
As you can see from the picture, I've got some babies coming in already. How cute.