Every thought yourself, 120 film is pretty expensive? 
Well fear not, you can use your 35mm film in a nifty little 120 camera with this 3d printed adapter. 

Pros:
You get to shoot a lot more than the 12 exposures on 35mm. 
You also get this pretty cool effect because medium format cameras will cover the entire negative with light, even where the sprockets are! 
Example: https://austerityphoto.co.uk/the-bluffers-8-steps-guide-for-shooting-35mm-in-120-film/

Just remember, if you're shooting inside of a medium format camera, you will most likely have to open your camera in the dark room to expose it. Alternatively, you can buy (or recycle) old film canisters and use it as a take up spool. Either way - get creative! 

There are many formats and standards in the 120 film world - cameras that have different frame sizes. With 35mm film in a medium format camera you’ll get panoramic-format photographs with a size of about…
— 3,5x6cm in 6×6 cameras
— 3,5x7cm in 6×7 cameras
— 3,5x9cm in 6×9 cameras
— 3,5x17cm with panoramic cameras

The larger the frame, the fewer the pictures will result from a roll of 35mm film. Another variable is the length of the film: the 135 film can have 12, 24, 27, 36 exposures or even more in case of manual bulk respoolings… On a 6×7 camera, a 24 exposures film will give you circa 12 photos 35x70mm. 36 exposures film will give you about 18 photos depending on the type of camera.

Included in listing: (2) 35mm film canister adapter.
2 pieces total


*Camera and 120 spool not included*