This is a D-ring I made as a part for converting the Oculus Quest to Vive deluxe audio strap.

Works well. Is plenty sturdy enough as well, even in PLA.

I used .25mm layer heights, 3 layer tops/bottoms, and 4 perimeters.

The Velcro side of the ring is fine for 7/8" and 1" Velcro tie straps. In the pic I am using a 7/8" strap.