Had a couple of identical Scissors with the handle broken (at the same exact place) so I figured it was about time to print a replacement, I tested a few models found here an other sites and none fit correctly, so I created a new one based on scans (great excuse to learn more about ONSHAPE)
I traced the shapes from the image (handles, blades, broken parts) and then played around until I got something that looked good, first print required a little trimming to fit the scissors (but worked good enough to leave in use), so I added those corrections to the design.
As I have a bit of thick fingers I decided to create a version with larger handle holes for my second one.
printer in PLA .2 layer, .4 nozzle, 5 perimeters, 35% infill.
If you wish to modify the model for your needs you can find it here https://cad.onshape.com/documents/6421b1188459cd826b1404ab/w/aafd97e9a63e163aedbdae26/e/65ad70af1623ee1a9635b46a
The author marked this model as their own original creation.