Free Spirit spheres are little bubble shelters that you can hang from a tree or mount on a cradle. They weigh about 500 lbs and are made from wood and fiberglass.
The original 9’ sphere, Eve, has closets on either side of the door. These function as partial bulkheads and reinforce the door opening. There is a double bed on the left centered under the 4’ window. A settee with table is placed in front of the 4’ window on the right. The back wall opposite the door provides a galley area with counter and cupboards. A circular shelf, with an opening at the door, rings the ceiling. It makes a keyhole out of the ceiling. The shelf reinforces the attachment points and provides easy access storage.Link (Via Weird Links)
Future improvements include a washroom/shower/sauna sphere complete with its own effluent treatment system. It will produce only clean water and compost with luck. Something that could serve a whole colony of spheres on a remote setting.