I wanted to take digital images of some negatives and so needed a way to hold the strip of negatives still in front of a light source. This is my solution.
You will need two of these clips. and a strip of negatives.
Now all you do is clip them together! Place a light source behind the negatives, (an iPad with a torch app is ideal) and snap away, but take care with focusing to get it sharp and use a tripod. Enjoy digitizing all your old negatives!