Negative Holder for DSLR Scanning

I've designed this holder, to scan my 35mm negatives. There're 4 holes in the center of the each half of holder. This is place for magnets. I've bought 10x2mm neodinium magnets and glued them in. You have to put your negative in the holder and put second half on it. Remember to glue magnets properly, so they can attract. 3 last photos, are the result of scanning negatives using this holder and my digital camera :D