My dog managed to get a hold of a mitten and destroyed a d-ring.
I therefore needed a ned d-ring to replace the old one, that was sewn on. This d-ring slots on to existing loops, no needle and thread needed!
Height, width and thickness can be adjusted.
I printed it with a extra hard TPU and 100% infill, i guess any other filament that can handle being outside will work just as well.
V2: Added a fillet around the edges.
The author marked this model as their own original creation.