I have so much fun with Horizon Perfekt! Not only could I combine 3 panorama photos into a 360 picture, I could also shoot on the ground with shinny reflecting surface. Because of its uniqueness, you can create more interesting and funny pictures.
For the choice of film, I recommend you use ISO100, due to the need to use slow shutter speeds with a small aperture size. Why? Because slow shutter speed could let you have enough time to create the wavy picture and small size of aperture, like F.8, F.11 and F.16, could capture things clearer due to the deep focal length.
Start shooting when all the preparation is done. Generally we hold the Horizon Perfekt nice and tight to get the perfect panorama picture, but not this time. Start turning the camera (just like holding the racing wheel) just after u pressed the shutter button, 10-15 degrees would be fair enough to create the wavy images.
Moreover, you could ask your friends to move with the same speed of the slow shutter speed, it would also created some amazing pictures! What are you waiting for if you have already got the Horizon Perfekt?