I bought a couple of these black painted bronze snap shackles from MIL-SPEC MONKEY, to use with paracord lanyards.
They do cost a bit more than the usual cheaper swivel clips and carabiners I often use, but it's a neat, well built accessory for some paracord work.
I added one to a lanyard made like the 'Paracord Lanyard Project'. The snap shackle has a 1" slot, so I looped the cord ends around the shackle a couple of extra times to fill the slot. The lanyard is also slightly longer than the tutorial version, with a couple extra feet of paracord, so this one has just over 12 total feet of 550 paracord in it.
The working ends are pulled under the last couple of knots on each side with hemostats, instead of melting the ends, with the excess then trimmed and tucked to finish.
I used some black 1.4mm cord for the shackle ring pull, which opens the shackle. I don't know how long the black paint will last, but I guess scratches could be touched up with a Sharpie. I imagine the bronze would still look nice over time as the painted finish eventually wears off.