There are two main ways to get true panoramic images on 35mm. The premium—and less weird—way is to use the TX-1, a joint project between Fujifilm and Hasselblad. Strongly designed and a truly unique format, it the subject of much lust in analog photo circles. The more eccentric option is the swing-lens camera; instead of cropping the image circle onto a panoramic frame, a swing lens camera pans a lens across a curved piece of film. Famously used by Jeff Bridges, the Widelux is a proper Japanese camera with this design.
However, there is a third option I recently discovered unexpectedly: The Horizont. This stout metal brick is Soviet, produced in 1969 according the serial number. Entirely mechanical and still going strong, my first roll of film through it did not disappoint. The vertical light leaks on the side are the result of decades old foam breaking down; the other prominent marks seem to be the peculiar intersection of lens flare and swing-lens action.