I found another use for the slip cover from a computer chair's wheelbase. Used in conjuction with an instant cappuccino container. Being this was my first attempt to make these, I have already improved my method for the next construction.
I started with a 3 piece slip cover and 1 cappuccino container.
I scored the end and removed a section that will impede the light.
Checked the fit.
Determined there was to much length for the device.
Determined how much extra room was able to be removed.
Used a torch and metal blade to cut through the plastic for length reduction. Can use one or two ring layers less.
Finished assembly with some duct tape. Made a second one from the remnants. I prefer the first. the bottle has is a bit less translucent and more white.
A couple of sample shots. Non adjusted Jpeg.