Tree and Sky Fairy Door

The woodland faries movie in behind these odd little doors. Sometimes at night I  hear swearing and smashing of bottles, once I swear I saw a little blue Scottish man in a kilt rush out shouting "CRIVENS!"
Please note, you will not be able to pick the colour of your door. Faries don't go in for choosing these sort of things, so you will receive a fancy fairy door of indeterminate colour.