Is that where the forest fairies live?!
Coooool: Wooden Logs With Hidden Pop-Up Castles

These are a couple videos of woodworker edctoom demonstrating the telescoping hidden castles he carved into unassuming wooden logs, presumably with magic, but possibly by laser, fairies, or extreme skill, all of which are forms of magic anyways. So no matter which way you look at it (except between your legs in the mirror), the answer here is magic (the other answer being what your own butthole looks like). I gave blood today and passed out! Feel my hands, are they still cold? “And wet.” Haha, my dogs have been licking them but I’m too weak to move.