What kind of biome/items do you associate with fairies?
Also, what are fairies to you?

(this is for a project I am working on :3)

Maybe prettyor cute things? Childish things? Shiny things? 

Fairies are Celtic in origin. They can actually be quite dark and deadly, so don't restrict them to cute and fluffy. Many of the Fairies, or Fae, are found in mostly natural habitats; woodlands, moors, rivers, etc. That's not to say that there aren't good fairies, but most of the fairies in ancient legend are the bad guys. They're the ones who did the bad things, or that you had to give or leave something so that they would not do bad things. If you want authentic fairies, I recommend that you go looking up ancient Celtic/Irish/Scottish fairies. There's a lot of rich lore on them.

When I hear the word fairy I instantly think of little grey creepy looking insect-human like things with moth wings that are mostly evil lol.