We seldom talk about 3D printing lenses because most techniques can’t possibly produce transparent parts of optical quality.
Disposable cameras are a fun way to get into classical photography. However, they can also be a valuable source of interesting parts that can be put to other uses. For example, as [Billt] ...
LENS-FREE IS THE WAY TO BE. For a camera to work, it’s pretty much gotta have a lens. That little piece of glass is responsible for directing light to the camera’s sensor so it can produce an image.