The biggest, most important, and maybe the only firm rule in fairy house building: fairy houses must be made from materials found in nature. You got that? Sure, fairies love glittering gems and shiny marbles but not in their houses! They like admiring these things in the human world but bring it into the fairy realm and you are guaranteed to make a fairy mad. And a mad fairy is not a good fairy. Don’t worry, this is not a problem. The list of materials to build with is long because there are endless supplies of natural materials to choose from.
So, now that we have that covered, here are the most important things that you need as you begin your career as a fairy house builder: a good imagination, an ability to work in the woods for long periods of time, a bag or a box to collect things, a pair of binoculars in case you see something hovering around you while you work, respect for fairies and the natural world, and a good dose of curiosity and inventiveness.