Instamatic X-25 35mm Film Coupler

I found an Kodak Instamatic X-25 at a thrift shop for 3$, but no film. After consulting Dr. Google the end result is that the film is very expensive and very hard to duplicate due to the unique cartridge that comes with it- but there has been next to no progress on making a 3D print of that.

So, in lieu of making one of those I made this, it's a coupler for any regular 35mm film to the inside of the Instamatic, allowing for it to take regular film. The only catch is that you have to saw or g