My Lowepro sling bag (LP141) has a long armpit strap that hangs in the way when it's not in use. Tucking it in was a pain and unreliable, so I made a keeper buckle based on the existing buckle design with changes to improve printability for optional supports.
Model is quite old so it included a ‘perimeter ring’ - separate the parts and delete this if undesired. Printed in Prusa silver PLA with surprising color likeness.
The author marked this model as their own original creation.