It's a TRAP! Testament to bondage in minimal space.
Virtually every corner of my room is designed for some kind of fun, and looks innocent enough to pass for nothing but! Carefully folded blankets and well-placed pillows on my bed gladly conceal Shibari-style shackles on the head and foot boards (all 4 points and in the middle). The hammock that is mounted to the ceiling by a bar-and-knot system is mistaken as part of me "just being creative," but actually pulls triple duty as a place to relax, a sex-swing, and as a pulley/anchor suspension system. I reinforced the rafters to allow it to hold more than 400 lbs easily. The closet has a steel clothing bar with modified, weight supporting brackets, and a clear floor. 3 corners of my modest room have different media that my subjects, depending on how they behave, will kneel upon- a small beanbag chair (FUN to watch them balance on a shifting surface!), Cold hard linoleum, and a cardboard cat-scratching station (chafes the knees terribly). All look like everyday items, placed neatly into the living/sleeping space designed for a single guy who shares a house with a roomie. For more vigorous or colder sessions, the bomb shelter- Yes, there is a bomb shelter in my basement!- has been used, and is now under modification to become a fully-functional dungeon.
What I love about this arrangement, is that newbies have no idea what is about to happen to them, and that trained subjects cannot sit in my room without knowing that they are probably sitting on, standing next to, or touching something that has, or will be eventually be used in a session. I have one who cannot even walk into my room without her panties getting squishy before hitting the threshold!