Ovnipan is a circular pinhole camera that has six pinholes equally spaced around its periphery, thus covering all 360º of the scene. The film plane is an inner cylinder that covers a panoramic format of
6 x 18cm. The shutter is the white plastic cylinder that forms the outside of the camera. All six pinholes are uncovered simultaneously, when the shutter is rotated.
More info and cameras at the CasadoPinhole website. Love their minimalist approach.