I designed this replacement lanyard connector after the original one broke. This part should works with most key lanyards. It is not able to quickly disconnected like the original but I might update the design with that feature.
Build Instructions
Print with 100% infill and no supports. Press on each loop near the gap to break any bonded material. This gap will allow the loop to be opened up so the ends of the lanyard can be fed in.
The author hasn't provided the model origin yet.